Use collection literals to populate queryParams

Less code. More readable code
diff --git a/generated/googleapis/lib/abusiveexperiencereport/v1.dart b/generated/googleapis/lib/abusiveexperiencereport/v1.dart
index f8b4a66..21e3de4 100644
--- a/generated/googleapis/lib/abusiveexperiencereport/v1.dart
+++ b/generated/googleapis/lib/abusiveexperiencereport/v1.dart
@@ -86,10 +86,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -125,10 +124,9 @@
   async.Future<ViolatingSitesResponse> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/violatingSites';
 
diff --git a/generated/googleapis/lib/acceleratedmobilepageurl/v1.dart b/generated/googleapis/lib/acceleratedmobilepageurl/v1.dart
index 8bd4fb5..0fff54d 100644
--- a/generated/googleapis/lib/acceleratedmobilepageurl/v1.dart
+++ b/generated/googleapis/lib/acceleratedmobilepageurl/v1.dart
@@ -81,10 +81,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/ampUrls:batchGet';
 
diff --git a/generated/googleapis/lib/accessapproval/v1.dart b/generated/googleapis/lib/accessapproval/v1.dart
index 80bf9c6..1f28536 100644
--- a/generated/googleapis/lib/accessapproval/v1.dart
+++ b/generated/googleapis/lib/accessapproval/v1.dart
@@ -99,10 +99,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -138,10 +137,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -198,13 +196,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -257,10 +252,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':approve';
@@ -310,10 +304,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':dismiss';
@@ -354,10 +347,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -415,19 +407,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -481,10 +466,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -520,10 +504,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -580,13 +563,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -640,10 +620,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':approve';
@@ -694,10 +673,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':dismiss';
@@ -739,10 +717,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -800,19 +777,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -866,10 +836,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -905,10 +874,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -965,13 +933,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1024,10 +989,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':approve';
@@ -1077,10 +1041,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':dismiss';
@@ -1121,10 +1084,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1182,19 +1144,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/accesscontextmanager/v1.dart b/generated/googleapis/lib/accesscontextmanager/v1.dart
index 7c397a5..fc5d889 100644
--- a/generated/googleapis/lib/accesscontextmanager/v1.dart
+++ b/generated/googleapis/lib/accesscontextmanager/v1.dart
@@ -102,10 +102,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/accessPolicies';
 
@@ -146,10 +145,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -186,10 +184,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -231,19 +228,12 @@
     core.String parent,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/accessPolicies';
 
@@ -295,13 +285,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -356,10 +343,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -402,10 +388,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -456,13 +441,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accessLevelFormat != null) {
-      _queryParams['accessLevelFormat'] = [accessLevelFormat];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accessLevelFormat != null) 'accessLevelFormat': [accessLevelFormat],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -518,19 +500,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accessLevelFormat != null) {
-      _queryParams['accessLevelFormat'] = [accessLevelFormat];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accessLevelFormat != null) 'accessLevelFormat': [accessLevelFormat],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -586,13 +561,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -644,10 +616,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -712,10 +683,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -765,10 +735,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -812,10 +781,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -853,10 +821,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -902,16 +869,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -968,13 +930,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1025,10 +984,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1087,10 +1045,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1132,10 +1089,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1174,10 +1130,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1231,19 +1186,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1306,10 +1254,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1354,10 +1301,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1395,10 +1341,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1445,16 +1390,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1513,13 +1453,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/adexchangebuyer/v1_3.dart b/generated/googleapis/lib/adexchangebuyer/v1_3.dart
index 46f32ff..547770e 100644
--- a/generated/googleapis/lib/adexchangebuyer/v1_3.dart
+++ b/generated/googleapis/lib/adexchangebuyer/v1_3.dart
@@ -99,10 +99,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' + commons.Escaper.ecapeVariable('$id');
 
@@ -131,10 +130,9 @@
   async.Future<AccountsList> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'accounts';
 
@@ -177,10 +175,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' + commons.Escaper.ecapeVariable('$id');
 
@@ -221,10 +218,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' + commons.Escaper.ecapeVariable('$id');
 
@@ -266,10 +262,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'billinginfo/' + commons.Escaper.ecapeVariable('$accountId');
 
@@ -300,10 +295,9 @@
   async.Future<BillingInfoList> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'billinginfo';
 
@@ -352,10 +346,9 @@
     if (billingId == null) {
       throw core.ArgumentError('Parameter billingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'billinginfo/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -407,10 +400,9 @@
     if (billingId == null) {
       throw core.ArgumentError('Parameter billingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'billinginfo/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -461,10 +453,9 @@
     if (billingId == null) {
       throw core.ArgumentError('Parameter billingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'billinginfo/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -517,10 +508,9 @@
     if (buyerCreativeId == null) {
       throw core.ArgumentError('Parameter buyerCreativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'creatives/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -557,10 +547,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'creatives';
 
@@ -618,25 +607,15 @@
     core.String statusFilter,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accountId != null) {
-      _queryParams['accountId'] = accountId.map((item) => '${item}').toList();
-    }
-    if (buyerCreativeId != null) {
-      _queryParams['buyerCreativeId'] = buyerCreativeId;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (statusFilter != null) {
-      _queryParams['statusFilter'] = [statusFilter];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accountId != null)
+        'accountId': accountId.map((item) => '${item}').toList(),
+      if (buyerCreativeId != null) 'buyerCreativeId': buyerCreativeId,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (statusFilter != null) 'statusFilter': [statusFilter],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'creatives';
 
@@ -678,10 +657,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'directdeals/' + commons.Escaper.ecapeVariable('$id');
 
@@ -711,10 +689,9 @@
   async.Future<DirectDealsList> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'directdeals';
 
@@ -771,28 +748,23 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    _queryParams['accountId'] = [accountId];
     if (endDateTime == null) {
       throw core.ArgumentError('Parameter endDateTime is required.');
     }
-    _queryParams['endDateTime'] = [endDateTime];
     if (startDateTime == null) {
       throw core.ArgumentError('Parameter startDateTime is required.');
     }
-    _queryParams['startDateTime'] = [startDateTime];
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'accountId': [accountId],
+      'endDateTime': [endDateTime],
+      'startDateTime': [startDateTime],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'performancereport';
 
@@ -838,10 +810,9 @@
     if (configId == null) {
       throw core.ArgumentError('Parameter configId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'pretargetingconfigs/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -885,10 +856,9 @@
     if (configId == null) {
       throw core.ArgumentError('Parameter configId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'pretargetingconfigs/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -932,10 +902,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'pretargetingconfigs/' + commons.Escaper.ecapeVariable('$accountId');
@@ -973,10 +942,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'pretargetingconfigs/' + commons.Escaper.ecapeVariable('$accountId');
@@ -1026,10 +994,9 @@
     if (configId == null) {
       throw core.ArgumentError('Parameter configId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'pretargetingconfigs/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1080,10 +1047,9 @@
     if (configId == null) {
       throw core.ArgumentError('Parameter configId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'pretargetingconfigs/' +
         commons.Escaper.ecapeVariable('$accountId') +
diff --git a/generated/googleapis/lib/adexchangebuyer/v1_4.dart b/generated/googleapis/lib/adexchangebuyer/v1_4.dart
index a253b06..884406e 100644
--- a/generated/googleapis/lib/adexchangebuyer/v1_4.dart
+++ b/generated/googleapis/lib/adexchangebuyer/v1_4.dart
@@ -112,10 +112,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' + commons.Escaper.ecapeVariable('$id');
 
@@ -144,10 +143,9 @@
   async.Future<AccountsList> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'accounts';
 
@@ -194,15 +192,11 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (confirmUnsafeAccountChange != null) {
-      _queryParams['confirmUnsafeAccountChange'] = [
-        '${confirmUnsafeAccountChange}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (confirmUnsafeAccountChange != null)
+        'confirmUnsafeAccountChange': ['${confirmUnsafeAccountChange}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' + commons.Escaper.ecapeVariable('$id');
 
@@ -247,15 +241,11 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (confirmUnsafeAccountChange != null) {
-      _queryParams['confirmUnsafeAccountChange'] = [
-        '${confirmUnsafeAccountChange}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (confirmUnsafeAccountChange != null)
+        'confirmUnsafeAccountChange': ['${confirmUnsafeAccountChange}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' + commons.Escaper.ecapeVariable('$id');
 
@@ -297,10 +287,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'billinginfo/' + commons.Escaper.ecapeVariable('$accountId');
 
@@ -331,10 +320,9 @@
   async.Future<BillingInfoList> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'billinginfo';
 
@@ -383,10 +371,9 @@
     if (billingId == null) {
       throw core.ArgumentError('Parameter billingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'billinginfo/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -438,10 +425,9 @@
     if (billingId == null) {
       throw core.ArgumentError('Parameter billingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'billinginfo/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -492,10 +478,9 @@
     if (billingId == null) {
       throw core.ArgumentError('Parameter billingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'billinginfo/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -550,10 +535,9 @@
     if (dealId == null) {
       throw core.ArgumentError('Parameter dealId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'creatives/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -601,10 +585,9 @@
     if (buyerCreativeId == null) {
       throw core.ArgumentError('Parameter buyerCreativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'creatives/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -641,10 +624,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'creatives';
 
@@ -717,28 +699,17 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accountId != null) {
-      _queryParams['accountId'] = accountId.map((item) => '${item}').toList();
-    }
-    if (buyerCreativeId != null) {
-      _queryParams['buyerCreativeId'] = buyerCreativeId;
-    }
-    if (dealsStatusFilter != null) {
-      _queryParams['dealsStatusFilter'] = [dealsStatusFilter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (openAuctionStatusFilter != null) {
-      _queryParams['openAuctionStatusFilter'] = [openAuctionStatusFilter];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accountId != null)
+        'accountId': accountId.map((item) => '${item}').toList(),
+      if (buyerCreativeId != null) 'buyerCreativeId': buyerCreativeId,
+      if (dealsStatusFilter != null) 'dealsStatusFilter': [dealsStatusFilter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (openAuctionStatusFilter != null)
+        'openAuctionStatusFilter': [openAuctionStatusFilter],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'creatives';
 
@@ -780,10 +751,9 @@
     if (buyerCreativeId == null) {
       throw core.ArgumentError('Parameter buyerCreativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'creatives/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -833,10 +803,9 @@
     if (dealId == null) {
       throw core.ArgumentError('Parameter dealId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'creatives/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -887,10 +856,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'proposals/' +
         commons.Escaper.ecapeVariable('$proposalId') +
@@ -934,10 +902,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'proposals/' +
         commons.Escaper.ecapeVariable('$proposalId') +
@@ -980,13 +947,10 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pqlQuery != null) {
-      _queryParams['pqlQuery'] = [pqlQuery];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pqlQuery != null) 'pqlQuery': [pqlQuery],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'proposals/' + commons.Escaper.ecapeVariable('$proposalId') + '/deals';
@@ -1028,10 +992,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'proposals/' +
         commons.Escaper.ecapeVariable('$proposalId') +
@@ -1081,10 +1044,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'proposals/' +
         commons.Escaper.ecapeVariable('$proposalId') +
@@ -1129,13 +1091,10 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pqlQuery != null) {
-      _queryParams['pqlQuery'] = [pqlQuery];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pqlQuery != null) 'pqlQuery': [pqlQuery],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'proposals/' + commons.Escaper.ecapeVariable('$proposalId') + '/notes';
@@ -1182,10 +1141,9 @@
     if (privateAuctionId == null) {
       throw core.ArgumentError('Parameter privateAuctionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'privateauction/' +
         commons.Escaper.ecapeVariable('$privateAuctionId') +
@@ -1244,28 +1202,23 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    _queryParams['accountId'] = [accountId];
     if (endDateTime == null) {
       throw core.ArgumentError('Parameter endDateTime is required.');
     }
-    _queryParams['endDateTime'] = [endDateTime];
     if (startDateTime == null) {
       throw core.ArgumentError('Parameter startDateTime is required.');
     }
-    _queryParams['startDateTime'] = [startDateTime];
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'accountId': [accountId],
+      'endDateTime': [endDateTime],
+      'startDateTime': [startDateTime],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'performancereport';
 
@@ -1311,10 +1264,9 @@
     if (configId == null) {
       throw core.ArgumentError('Parameter configId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'pretargetingconfigs/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1358,10 +1310,9 @@
     if (configId == null) {
       throw core.ArgumentError('Parameter configId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'pretargetingconfigs/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1405,10 +1356,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'pretargetingconfigs/' + commons.Escaper.ecapeVariable('$accountId');
@@ -1446,10 +1396,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'pretargetingconfigs/' + commons.Escaper.ecapeVariable('$accountId');
@@ -1499,10 +1448,9 @@
     if (configId == null) {
       throw core.ArgumentError('Parameter configId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'pretargetingconfigs/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1553,10 +1501,9 @@
     if (configId == null) {
       throw core.ArgumentError('Parameter configId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'pretargetingconfigs/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1602,10 +1549,9 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'products/' + commons.Escaper.ecapeVariable('$productId');
 
@@ -1637,13 +1583,10 @@
     core.String pqlQuery,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pqlQuery != null) {
-      _queryParams['pqlQuery'] = [pqlQuery];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pqlQuery != null) 'pqlQuery': [pqlQuery],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'products/search';
 
@@ -1685,10 +1628,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'proposals/' + commons.Escaper.ecapeVariable('$proposalId');
 
@@ -1722,10 +1664,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'proposals/insert';
 
@@ -1792,10 +1733,9 @@
     if (updateAction == null) {
       throw core.ArgumentError('Parameter updateAction is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'proposals/' +
         commons.Escaper.ecapeVariable('$proposalId') +
@@ -1833,13 +1773,10 @@
     core.String pqlQuery,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pqlQuery != null) {
-      _queryParams['pqlQuery'] = [pqlQuery];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pqlQuery != null) 'pqlQuery': [pqlQuery],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'proposals/search';
 
@@ -1873,10 +1810,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'proposals/' +
         commons.Escaper.ecapeVariable('$proposalId') +
@@ -1941,10 +1877,9 @@
     if (updateAction == null) {
       throw core.ArgumentError('Parameter updateAction is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'proposals/' +
         commons.Escaper.ecapeVariable('$proposalId') +
@@ -1991,10 +1926,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'publisher/' +
         commons.Escaper.ecapeVariable('$accountId') +
diff --git a/generated/googleapis/lib/adexperiencereport/v1.dart b/generated/googleapis/lib/adexperiencereport/v1.dart
index d9cbe33..5734895 100644
--- a/generated/googleapis/lib/adexperiencereport/v1.dart
+++ b/generated/googleapis/lib/adexperiencereport/v1.dart
@@ -85,10 +85,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -125,10 +124,9 @@
   async.Future<ViolatingSitesResponse> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/violatingSites';
 
diff --git a/generated/googleapis/lib/admin/datatransfer_v1.dart b/generated/googleapis/lib/admin/datatransfer_v1.dart
index 9bb6690..b80cc98 100644
--- a/generated/googleapis/lib/admin/datatransfer_v1.dart
+++ b/generated/googleapis/lib/admin/datatransfer_v1.dart
@@ -93,10 +93,9 @@
     if (applicationId == null) {
       throw core.ArgumentError('Parameter applicationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/datatransfer/v1/applications/' +
         commons.Escaper.ecapeVariable('$applicationId');
@@ -137,19 +136,12 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/datatransfer/v1/applications';
 
@@ -192,10 +184,9 @@
     if (dataTransferId == null) {
       throw core.ArgumentError('Parameter dataTransferId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/datatransfer/v1/transfers/' +
         commons.Escaper.ecapeVariable('$dataTransferId');
@@ -231,10 +222,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/datatransfer/v1/transfers';
 
@@ -285,28 +275,15 @@
     core.String status,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (newOwnerUserId != null) {
-      _queryParams['newOwnerUserId'] = [newOwnerUserId];
-    }
-    if (oldOwnerUserId != null) {
-      _queryParams['oldOwnerUserId'] = [oldOwnerUserId];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (status != null) {
-      _queryParams['status'] = [status];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (newOwnerUserId != null) 'newOwnerUserId': [newOwnerUserId],
+      if (oldOwnerUserId != null) 'oldOwnerUserId': [oldOwnerUserId],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (status != null) 'status': [status],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/datatransfer/v1/transfers';
 
diff --git a/generated/googleapis/lib/admin/directory_v1.dart b/generated/googleapis/lib/admin/directory_v1.dart
index 8cd3877..a71a4d4 100644
--- a/generated/googleapis/lib/admin/directory_v1.dart
+++ b/generated/googleapis/lib/admin/directory_v1.dart
@@ -248,10 +248,9 @@
     if (codeId == null) {
       throw core.ArgumentError('Parameter codeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -296,10 +295,9 @@
     if (codeId == null) {
       throw core.ArgumentError('Parameter codeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -338,10 +336,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -381,10 +378,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/directory_v1/channels/stop';
 
@@ -452,10 +448,9 @@
     if (resourceId == null) {
       throw core.ArgumentError('Parameter resourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -517,13 +512,10 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projection != null) 'projection': [projection],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -614,31 +606,16 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (orgUnitPath != null) {
-      _queryParams['orgUnitPath'] = [orgUnitPath];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (orgUnitPath != null) 'orgUnitPath': [orgUnitPath],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (projection != null) 'projection': [projection],
+      if (query != null) 'query': [query],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -684,14 +661,13 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (orgUnitPath == null) {
       throw core.ArgumentError('Parameter orgUnitPath is required.');
     }
-    _queryParams['orgUnitPath'] = [orgUnitPath];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'orgUnitPath': [orgUnitPath],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -759,13 +735,10 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projection != null) 'projection': [projection],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -832,13 +805,10 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projection != null) 'projection': [projection],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -916,10 +886,9 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -979,10 +948,9 @@
     if (commandId == null) {
       throw core.ArgumentError('Parameter commandId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -1029,10 +997,9 @@
     if (customerKey == null) {
       throw core.ArgumentError('Parameter customerKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerKey');
@@ -1073,10 +1040,9 @@
     if (customerKey == null) {
       throw core.ArgumentError('Parameter customerKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerKey');
@@ -1118,10 +1084,9 @@
     if (customerKey == null) {
       throw core.ArgumentError('Parameter customerKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerKey');
@@ -1168,10 +1133,9 @@
     if (domainAliasName == null) {
       throw core.ArgumentError('Parameter domainAliasName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -1215,10 +1179,9 @@
     if (domainAliasName == null) {
       throw core.ArgumentError('Parameter domainAliasName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -1262,10 +1225,9 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -1308,13 +1270,10 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parentDomainName != null) {
-      _queryParams['parentDomainName'] = [parentDomainName];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parentDomainName != null) 'parentDomainName': [parentDomainName],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -1362,10 +1321,9 @@
     if (domainName == null) {
       throw core.ArgumentError('Parameter domainName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -1409,10 +1367,9 @@
     if (domainName == null) {
       throw core.ArgumentError('Parameter domainName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -1455,10 +1412,9 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -1496,10 +1452,9 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -1543,10 +1498,9 @@
     if (groupKey == null) {
       throw core.ArgumentError('Parameter groupKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey');
@@ -1583,10 +1537,9 @@
     if (groupKey == null) {
       throw core.ArgumentError('Parameter groupKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey');
@@ -1621,10 +1574,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/directory/v1/groups';
 
@@ -1698,34 +1650,17 @@
     core.String userKey,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if (domain != null) {
-      _queryParams['domain'] = [domain];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (userKey != null) {
-      _queryParams['userKey'] = [userKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if (domain != null) 'domain': [domain],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (userKey != null) 'userKey': [userKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/directory/v1/groups';
 
@@ -1769,10 +1704,9 @@
     if (groupKey == null) {
       throw core.ArgumentError('Parameter groupKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey');
@@ -1815,10 +1749,9 @@
     if (groupKey == null) {
       throw core.ArgumentError('Parameter groupKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey');
@@ -1866,10 +1799,9 @@
     if (alias == null) {
       throw core.ArgumentError('Parameter alias is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -1913,10 +1845,9 @@
     if (groupKey == null) {
       throw core.ArgumentError('Parameter groupKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -1955,10 +1886,9 @@
     if (groupKey == null) {
       throw core.ArgumentError('Parameter groupKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -2008,10 +1938,9 @@
     if (memberKey == null) {
       throw core.ArgumentError('Parameter memberKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -2058,10 +1987,9 @@
     if (memberKey == null) {
       throw core.ArgumentError('Parameter memberKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -2109,10 +2037,9 @@
     if (memberKey == null) {
       throw core.ArgumentError('Parameter memberKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -2157,10 +2084,9 @@
     if (groupKey == null) {
       throw core.ArgumentError('Parameter groupKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -2214,24 +2140,14 @@
     if (groupKey == null) {
       throw core.ArgumentError('Parameter groupKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDerivedMembership != null) {
-      _queryParams['includeDerivedMembership'] = [
-        '${includeDerivedMembership}'
-      ];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (roles != null) {
-      _queryParams['roles'] = [roles];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDerivedMembership != null)
+        'includeDerivedMembership': ['${includeDerivedMembership}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (roles != null) 'roles': [roles],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -2285,10 +2201,9 @@
     if (memberKey == null) {
       throw core.ArgumentError('Parameter memberKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -2341,10 +2256,9 @@
     if (memberKey == null) {
       throw core.ArgumentError('Parameter memberKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/groups/' +
         commons.Escaper.ecapeVariable('$groupKey') +
@@ -2405,10 +2319,9 @@
     if (resourceId == null) {
       throw core.ArgumentError('Parameter resourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -2457,10 +2370,9 @@
     if (resourceId == null) {
       throw core.ArgumentError('Parameter resourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -2517,13 +2429,10 @@
     if (resourceId == null) {
       throw core.ArgumentError('Parameter resourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projection != null) 'projection': [projection],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -2608,28 +2517,15 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (projection != null) 'projection': [projection],
+      if (query != null) 'query': [query],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -2682,10 +2578,9 @@
     if (orgUnitPath == null) {
       throw core.ArgumentError('Parameter orgUnitPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -2734,10 +2629,9 @@
     if (orgUnitPath == null) {
       throw core.ArgumentError('Parameter orgUnitPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -2784,10 +2678,9 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -2841,16 +2734,11 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (orgUnitPath != null) {
-      _queryParams['orgUnitPath'] = [orgUnitPath];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (orgUnitPath != null) 'orgUnitPath': [orgUnitPath],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -2906,10 +2794,9 @@
     if (orgUnitPath == null) {
       throw core.ArgumentError('Parameter orgUnitPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -2964,10 +2851,9 @@
     if (orgUnitPath == null) {
       throw core.ArgumentError('Parameter orgUnitPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -3012,10 +2898,9 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3078,10 +2963,9 @@
     if (buildingId == null) {
       throw core.ArgumentError('Parameter buildingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3127,10 +3011,9 @@
     if (buildingId == null) {
       throw core.ArgumentError('Parameter buildingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3187,13 +3070,10 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (coordinatesSource != null) {
-      _queryParams['coordinatesSource'] = [coordinatesSource];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (coordinatesSource != null) 'coordinatesSource': [coordinatesSource],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3240,16 +3120,11 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3311,13 +3186,10 @@
     if (buildingId == null) {
       throw core.ArgumentError('Parameter buildingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (coordinatesSource != null) {
-      _queryParams['coordinatesSource'] = [coordinatesSource];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (coordinatesSource != null) 'coordinatesSource': [coordinatesSource],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3381,13 +3253,10 @@
     if (buildingId == null) {
       throw core.ArgumentError('Parameter buildingId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (coordinatesSource != null) {
-      _queryParams['coordinatesSource'] = [coordinatesSource];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (coordinatesSource != null) 'coordinatesSource': [coordinatesSource],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3438,10 +3307,9 @@
     if (calendarResourceId == null) {
       throw core.ArgumentError('Parameter calendarResourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3487,10 +3355,9 @@
     if (calendarResourceId == null) {
       throw core.ArgumentError('Parameter calendarResourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3536,10 +3403,9 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3608,22 +3474,13 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3674,10 +3531,9 @@
     if (calendarResourceId == null) {
       throw core.ArgumentError('Parameter calendarResourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3734,10 +3590,9 @@
     if (calendarResourceId == null) {
       throw core.ArgumentError('Parameter calendarResourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3789,10 +3644,9 @@
     if (featureKey == null) {
       throw core.ArgumentError('Parameter featureKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3838,10 +3692,9 @@
     if (featureKey == null) {
       throw core.ArgumentError('Parameter featureKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3886,10 +3739,9 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3936,16 +3788,11 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -3995,10 +3842,9 @@
     if (featureKey == null) {
       throw core.ArgumentError('Parameter featureKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4048,10 +3894,9 @@
     if (oldName == null) {
       throw core.ArgumentError('Parameter oldName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4104,10 +3949,9 @@
     if (featureKey == null) {
       throw core.ArgumentError('Parameter featureKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4156,10 +4000,9 @@
     if (roleAssignmentId == null) {
       throw core.ArgumentError('Parameter roleAssignmentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4203,10 +4046,9 @@
     if (roleAssignmentId == null) {
       throw core.ArgumentError('Parameter roleAssignmentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4250,10 +4092,9 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4308,22 +4149,13 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (roleId != null) {
-      _queryParams['roleId'] = [roleId];
-    }
-    if (userKey != null) {
-      _queryParams['userKey'] = [userKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (roleId != null) 'roleId': [roleId],
+      if (userKey != null) 'userKey': [userKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4371,10 +4203,9 @@
     if (roleId == null) {
       throw core.ArgumentError('Parameter roleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4418,10 +4249,9 @@
     if (roleId == null) {
       throw core.ArgumentError('Parameter roleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4464,10 +4294,9 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4512,16 +4341,11 @@
     if (customer == null) {
       throw core.ArgumentError('Parameter customer is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4569,10 +4393,9 @@
     if (roleId == null) {
       throw core.ArgumentError('Parameter roleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4622,10 +4445,9 @@
     if (roleId == null) {
       throw core.ArgumentError('Parameter roleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customer') +
@@ -4674,10 +4496,9 @@
     if (schemaKey == null) {
       throw core.ArgumentError('Parameter schemaKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -4721,10 +4542,9 @@
     if (schemaKey == null) {
       throw core.ArgumentError('Parameter schemaKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -4767,10 +4587,9 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -4808,10 +4627,9 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -4859,10 +4677,9 @@
     if (schemaKey == null) {
       throw core.ArgumentError('Parameter schemaKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -4912,10 +4729,9 @@
     if (schemaKey == null) {
       throw core.ArgumentError('Parameter schemaKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/customer/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -4965,10 +4781,9 @@
     if (clientId == null) {
       throw core.ArgumentError('Parameter clientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5013,10 +4828,9 @@
     if (clientId == null) {
       throw core.ArgumentError('Parameter clientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5056,10 +4870,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5102,10 +4915,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5150,10 +4962,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'admin/directory/v1/users/' + commons.Escaper.ecapeVariable('$userKey');
@@ -5215,19 +5026,12 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customFieldMask != null) {
-      _queryParams['customFieldMask'] = [customFieldMask];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (viewType != null) {
-      _queryParams['viewType'] = [viewType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customFieldMask != null) 'customFieldMask': [customFieldMask],
+      if (projection != null) 'projection': [projection],
+      if (viewType != null) 'viewType': [viewType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'admin/directory/v1/users/' + commons.Escaper.ecapeVariable('$userKey');
@@ -5262,10 +5066,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/directory/v1/users';
 
@@ -5367,43 +5170,20 @@
     core.String viewType,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customFieldMask != null) {
-      _queryParams['customFieldMask'] = [customFieldMask];
-    }
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if (domain != null) {
-      _queryParams['domain'] = [domain];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = [showDeleted];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (viewType != null) {
-      _queryParams['viewType'] = [viewType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customFieldMask != null) 'customFieldMask': [customFieldMask],
+      if (customer != null) 'customer': [customer],
+      if (domain != null) 'domain': [domain],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (projection != null) 'projection': [projection],
+      if (query != null) 'query': [query],
+      if (showDeleted != null) 'showDeleted': [showDeleted],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (viewType != null) 'viewType': [viewType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/directory/v1/users';
 
@@ -5442,10 +5222,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5494,10 +5273,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'admin/directory/v1/users/' + commons.Escaper.ecapeVariable('$userKey');
@@ -5537,10 +5315,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5580,10 +5357,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5631,10 +5407,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'admin/directory/v1/users/' + commons.Escaper.ecapeVariable('$userKey');
@@ -5744,46 +5519,21 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customFieldMask != null) {
-      _queryParams['customFieldMask'] = [customFieldMask];
-    }
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if (domain != null) {
-      _queryParams['domain'] = [domain];
-    }
-    if (event != null) {
-      _queryParams['event'] = [event];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = [showDeleted];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (viewType != null) {
-      _queryParams['viewType'] = [viewType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customFieldMask != null) 'customFieldMask': [customFieldMask],
+      if (customer != null) 'customer': [customer],
+      if (domain != null) 'domain': [domain],
+      if (event != null) 'event': [event],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (projection != null) 'projection': [projection],
+      if (query != null) 'query': [query],
+      if (showDeleted != null) 'showDeleted': [showDeleted],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (viewType != null) 'viewType': [viewType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/directory/v1/users/watch';
 
@@ -5830,10 +5580,9 @@
     if (alias == null) {
       throw core.ArgumentError('Parameter alias is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5877,10 +5626,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5919,10 +5667,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -5971,13 +5718,10 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (event != null) {
-      _queryParams['event'] = [event];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (event != null) 'event': [event],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -6020,10 +5764,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -6061,10 +5804,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -6110,10 +5852,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -6157,10 +5898,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -6202,10 +5942,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -6240,10 +5979,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -6282,10 +6020,9 @@
     if (userKey == null) {
       throw core.ArgumentError('Parameter userKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/directory/v1/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
diff --git a/generated/googleapis/lib/admin/reports_v1.dart b/generated/googleapis/lib/admin/reports_v1.dart
index 417c7e2..62167e9 100644
--- a/generated/googleapis/lib/admin/reports_v1.dart
+++ b/generated/googleapis/lib/admin/reports_v1.dart
@@ -281,40 +281,19 @@
     if (applicationName == null) {
       throw core.ArgumentError('Parameter applicationName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (actorIpAddress != null) {
-      _queryParams['actorIpAddress'] = [actorIpAddress];
-    }
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (endTime != null) {
-      _queryParams['endTime'] = [endTime];
-    }
-    if (eventName != null) {
-      _queryParams['eventName'] = [eventName];
-    }
-    if (filters != null) {
-      _queryParams['filters'] = [filters];
-    }
-    if (groupIdFilter != null) {
-      _queryParams['groupIdFilter'] = [groupIdFilter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orgUnitID != null) {
-      _queryParams['orgUnitID'] = [orgUnitID];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (actorIpAddress != null) 'actorIpAddress': [actorIpAddress],
+      if (customerId != null) 'customerId': [customerId],
+      if (endTime != null) 'endTime': [endTime],
+      if (eventName != null) 'eventName': [eventName],
+      if (filters != null) 'filters': [filters],
+      if (groupIdFilter != null) 'groupIdFilter': [groupIdFilter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orgUnitID != null) 'orgUnitID': [orgUnitID],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startTime != null) 'startTime': [startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/reports/v1/activity/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -533,40 +512,19 @@
     if (applicationName == null) {
       throw core.ArgumentError('Parameter applicationName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (actorIpAddress != null) {
-      _queryParams['actorIpAddress'] = [actorIpAddress];
-    }
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (endTime != null) {
-      _queryParams['endTime'] = [endTime];
-    }
-    if (eventName != null) {
-      _queryParams['eventName'] = [eventName];
-    }
-    if (filters != null) {
-      _queryParams['filters'] = [filters];
-    }
-    if (groupIdFilter != null) {
-      _queryParams['groupIdFilter'] = [groupIdFilter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orgUnitID != null) {
-      _queryParams['orgUnitID'] = [orgUnitID];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (actorIpAddress != null) 'actorIpAddress': [actorIpAddress],
+      if (customerId != null) 'customerId': [customerId],
+      if (endTime != null) 'endTime': [endTime],
+      if (eventName != null) 'eventName': [eventName],
+      if (filters != null) 'filters': [filters],
+      if (groupIdFilter != null) 'groupIdFilter': [groupIdFilter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orgUnitID != null) 'orgUnitID': [orgUnitID],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startTime != null) 'startTime': [startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/reports/v1/activity/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
@@ -609,10 +567,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'admin/reports_v1/channels/stop';
 
@@ -692,19 +649,12 @@
     if (date == null) {
       throw core.ArgumentError('Parameter date is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parameters != null) {
-      _queryParams['parameters'] = [parameters];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parameters != null) 'parameters': [parameters],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/reports/v1/usage/dates/' +
         commons.Escaper.ecapeVariable('$date');
@@ -830,25 +780,14 @@
     if (date == null) {
       throw core.ArgumentError('Parameter date is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (filters != null) {
-      _queryParams['filters'] = [filters];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parameters != null) {
-      _queryParams['parameters'] = [parameters];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if (filters != null) 'filters': [filters],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parameters != null) 'parameters': [parameters],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/reports/v1/usage/' +
         commons.Escaper.ecapeVariable('$entityType') +
@@ -981,31 +920,16 @@
     if (date == null) {
       throw core.ArgumentError('Parameter date is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (filters != null) {
-      _queryParams['filters'] = [filters];
-    }
-    if (groupIdFilter != null) {
-      _queryParams['groupIdFilter'] = [groupIdFilter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orgUnitID != null) {
-      _queryParams['orgUnitID'] = [orgUnitID];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parameters != null) {
-      _queryParams['parameters'] = [parameters];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if (filters != null) 'filters': [filters],
+      if (groupIdFilter != null) 'groupIdFilter': [groupIdFilter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orgUnitID != null) 'orgUnitID': [orgUnitID],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parameters != null) 'parameters': [parameters],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'admin/reports/v1/usage/users/' +
         commons.Escaper.ecapeVariable('$userKey') +
diff --git a/generated/googleapis/lib/admob/v1.dart b/generated/googleapis/lib/admob/v1.dart
index 80caf97..23f8023 100644
--- a/generated/googleapis/lib/admob/v1.dart
+++ b/generated/googleapis/lib/admob/v1.dart
@@ -97,10 +97,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -141,16 +140,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/accounts';
 
@@ -204,10 +198,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -264,10 +257,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/adsense/v1_4.dart b/generated/googleapis/lib/adsense/v1_4.dart
index a0c2076..700a841 100644
--- a/generated/googleapis/lib/adsense/v1_4.dart
+++ b/generated/googleapis/lib/adsense/v1_4.dart
@@ -144,13 +144,10 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (tree != null) {
-      _queryParams['tree'] = ['${tree}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (tree != null) 'tree': ['${tree}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' + commons.Escaper.ecapeVariable('$accountId');
 
@@ -189,16 +186,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'accounts';
 
@@ -248,13 +240,10 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (tagPartner != null) {
-      _queryParams['tagPartner'] = [tagPartner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (tagPartner != null) 'tagPartner': [tagPartner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -303,16 +292,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -371,10 +355,9 @@
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -426,10 +409,9 @@
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -489,19 +471,12 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeInactive != null) {
-      _queryParams['includeInactive'] = ['${includeInactive}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeInactive != null) 'includeInactive': ['${includeInactive}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -569,16 +544,11 @@
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -631,10 +601,9 @@
     if (alertId == null) {
       throw core.ArgumentError('Parameter alertId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -677,13 +646,10 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'accounts/' + commons.Escaper.ecapeVariable('$accountId') + '/alerts';
@@ -742,10 +708,9 @@
     if (customChannelId == null) {
       throw core.ArgumentError('Parameter customChannelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -803,16 +768,11 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -884,19 +844,12 @@
     if (customChannelId == null) {
       throw core.ArgumentError('Parameter customChannelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeInactive != null) {
-      _queryParams['includeInactive'] = ['${includeInactive}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeInactive != null) 'includeInactive': ['${includeInactive}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -943,10 +896,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'accounts/' + commons.Escaper.ecapeVariable('$accountId') + '/payments';
@@ -1058,45 +1010,27 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (startDate == null) {
       throw core.ArgumentError('Parameter startDate is required.');
     }
-    _queryParams['startDate'] = [startDate];
     if (endDate == null) {
       throw core.ArgumentError('Parameter endDate is required.');
     }
-    _queryParams['endDate'] = [endDate];
-    if (currency != null) {
-      _queryParams['currency'] = [currency];
-    }
-    if (dimension != null) {
-      _queryParams['dimension'] = dimension;
-    }
-    if (filter != null) {
-      _queryParams['filter'] = filter;
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (metric != null) {
-      _queryParams['metric'] = metric;
-    }
-    if (sort != null) {
-      _queryParams['sort'] = sort;
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if (useTimezoneReporting != null) {
-      _queryParams['useTimezoneReporting'] = ['${useTimezoneReporting}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'startDate': [startDate],
+      'endDate': [endDate],
+      if (currency != null) 'currency': [currency],
+      if (dimension != null) 'dimension': dimension,
+      if (filter != null) 'filter': filter,
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (metric != null) 'metric': metric,
+      if (sort != null) 'sort': sort,
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if (useTimezoneReporting != null)
+        'useTimezoneReporting': ['${useTimezoneReporting}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'accounts/' + commons.Escaper.ecapeVariable('$accountId') + '/reports';
@@ -1166,19 +1100,12 @@
     if (savedReportId == null) {
       throw core.ArgumentError('Parameter savedReportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1227,16 +1154,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1287,10 +1209,9 @@
     if (savedAdStyleId == null) {
       throw core.ArgumentError('Parameter savedAdStyleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1339,16 +1260,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1410,16 +1326,11 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1469,16 +1380,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'adclients';
 
@@ -1528,10 +1434,9 @@
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1575,10 +1480,9 @@
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1630,19 +1534,12 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeInactive != null) {
-      _queryParams['includeInactive'] = ['${includeInactive}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeInactive != null) 'includeInactive': ['${includeInactive}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1702,16 +1599,11 @@
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1755,10 +1647,9 @@
     if (alertId == null) {
       throw core.ArgumentError('Parameter alertId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'alerts/' + commons.Escaper.ecapeVariable('$alertId');
 
@@ -1792,13 +1683,10 @@
     core.String locale,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'alerts';
 
@@ -1848,10 +1736,9 @@
     if (customChannelId == null) {
       throw core.ArgumentError('Parameter customChannelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1901,16 +1788,11 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1974,19 +1856,12 @@
     if (customChannelId == null) {
       throw core.ArgumentError('Parameter customChannelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeInactive != null) {
-      _queryParams['includeInactive'] = ['${includeInactive}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeInactive != null) 'includeInactive': ['${includeInactive}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -2035,10 +1910,9 @@
   async.Future<Metadata> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'metadata/dimensions';
 
@@ -2073,10 +1947,9 @@
   async.Future<Metadata> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'metadata/metrics';
 
@@ -2111,10 +1984,9 @@
   async.Future<Payments> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'payments';
 
@@ -2221,48 +2093,28 @@
     core.String $fields,
     commons.DownloadOptions downloadOptions = commons.DownloadOptions.Metadata,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (startDate == null) {
       throw core.ArgumentError('Parameter startDate is required.');
     }
-    _queryParams['startDate'] = [startDate];
     if (endDate == null) {
       throw core.ArgumentError('Parameter endDate is required.');
     }
-    _queryParams['endDate'] = [endDate];
-    if (accountId != null) {
-      _queryParams['accountId'] = accountId;
-    }
-    if (currency != null) {
-      _queryParams['currency'] = [currency];
-    }
-    if (dimension != null) {
-      _queryParams['dimension'] = dimension;
-    }
-    if (filter != null) {
-      _queryParams['filter'] = filter;
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (metric != null) {
-      _queryParams['metric'] = metric;
-    }
-    if (sort != null) {
-      _queryParams['sort'] = sort;
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if (useTimezoneReporting != null) {
-      _queryParams['useTimezoneReporting'] = ['${useTimezoneReporting}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'startDate': [startDate],
+      'endDate': [endDate],
+      if (accountId != null) 'accountId': accountId,
+      if (currency != null) 'currency': [currency],
+      if (dimension != null) 'dimension': dimension,
+      if (filter != null) 'filter': filter,
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (metric != null) 'metric': metric,
+      if (sort != null) 'sort': sort,
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if (useTimezoneReporting != null)
+        'useTimezoneReporting': ['${useTimezoneReporting}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'reports';
 
@@ -2324,19 +2176,12 @@
     if (savedReportId == null) {
       throw core.ArgumentError('Parameter savedReportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'reports/' + commons.Escaper.ecapeVariable('$savedReportId');
 
@@ -2376,16 +2221,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'reports/saved';
 
@@ -2427,10 +2267,9 @@
     if (savedAdStyleId == null) {
       throw core.ArgumentError('Parameter savedAdStyleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'savedadstyles/' + commons.Escaper.ecapeVariable('$savedAdStyleId');
@@ -2471,16 +2310,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'savedadstyles';
 
@@ -2532,16 +2366,11 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
diff --git a/generated/googleapis/lib/adsensehost/v4_1.dart b/generated/googleapis/lib/adsensehost/v4_1.dart
index 2a357f7..da38b74 100644
--- a/generated/googleapis/lib/adsensehost/v4_1.dart
+++ b/generated/googleapis/lib/adsensehost/v4_1.dart
@@ -103,10 +103,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' + commons.Escaper.ecapeVariable('$accountId');
 
@@ -138,14 +137,13 @@
     core.List<core.String> filterAdClientId, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (filterAdClientId == null || filterAdClientId.isEmpty) {
       throw core.ArgumentError('Parameter filterAdClientId is required.');
     }
-    _queryParams['filterAdClientId'] = filterAdClientId;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'filterAdClientId': filterAdClientId,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'accounts';
 
@@ -193,10 +191,9 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -244,16 +241,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -308,10 +300,9 @@
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -363,10 +354,9 @@
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -422,13 +412,11 @@
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (hostCustomChannelId != null) {
-      _queryParams['hostCustomChannelId'] = hostCustomChannelId;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (hostCustomChannelId != null)
+        'hostCustomChannelId': hostCustomChannelId,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -480,10 +468,9 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -542,19 +529,12 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeInactive != null) {
-      _queryParams['includeInactive'] = ['${includeInactive}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeInactive != null) 'includeInactive': ['${includeInactive}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -609,14 +589,13 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (adUnitId == null) {
       throw core.ArgumentError('Parameter adUnitId is required.');
     }
-    _queryParams['adUnitId'] = [adUnitId];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'adUnitId': [adUnitId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -667,10 +646,9 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -763,39 +741,24 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (startDate == null) {
       throw core.ArgumentError('Parameter startDate is required.');
     }
-    _queryParams['startDate'] = [startDate];
     if (endDate == null) {
       throw core.ArgumentError('Parameter endDate is required.');
     }
-    _queryParams['endDate'] = [endDate];
-    if (dimension != null) {
-      _queryParams['dimension'] = dimension;
-    }
-    if (filter != null) {
-      _queryParams['filter'] = filter;
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (metric != null) {
-      _queryParams['metric'] = metric;
-    }
-    if (sort != null) {
-      _queryParams['sort'] = sort;
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'startDate': [startDate],
+      'endDate': [endDate],
+      if (dimension != null) 'dimension': dimension,
+      if (filter != null) 'filter': filter,
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (metric != null) 'metric': metric,
+      if (sort != null) 'sort': sort,
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'accounts/' + commons.Escaper.ecapeVariable('$accountId') + '/reports';
@@ -837,10 +800,9 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' + commons.Escaper.ecapeVariable('$adClientId');
 
@@ -879,16 +841,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'adclients';
 
@@ -942,27 +899,20 @@
     core.String websiteLocale,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (productCode == null || productCode.isEmpty) {
       throw core.ArgumentError('Parameter productCode is required.');
     }
-    _queryParams['productCode'] = productCode;
     if (websiteUrl == null) {
       throw core.ArgumentError('Parameter websiteUrl is required.');
     }
-    _queryParams['websiteUrl'] = [websiteUrl];
-    if (callbackUrl != null) {
-      _queryParams['callbackUrl'] = [callbackUrl];
-    }
-    if (userLocale != null) {
-      _queryParams['userLocale'] = [userLocale];
-    }
-    if (websiteLocale != null) {
-      _queryParams['websiteLocale'] = [websiteLocale];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'productCode': productCode,
+      'websiteUrl': [websiteUrl],
+      if (callbackUrl != null) 'callbackUrl': [callbackUrl],
+      if (userLocale != null) 'userLocale': [userLocale],
+      if (websiteLocale != null) 'websiteLocale': [websiteLocale],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'associationsessions/start';
 
@@ -996,14 +946,13 @@
     core.String token, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    _queryParams['token'] = [token];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'token': [token],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'associationsessions/verify';
 
@@ -1051,10 +1000,9 @@
     if (customChannelId == null) {
       throw core.ArgumentError('Parameter customChannelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1099,10 +1047,9 @@
     if (customChannelId == null) {
       throw core.ArgumentError('Parameter customChannelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1146,10 +1093,9 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1198,16 +1144,11 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1255,14 +1196,13 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (customChannelId == null) {
       throw core.ArgumentError('Parameter customChannelId is required.');
     }
-    _queryParams['customChannelId'] = [customChannelId];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'customChannelId': [customChannelId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1306,10 +1246,9 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1395,39 +1334,24 @@
     core.int startIndex,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (startDate == null) {
       throw core.ArgumentError('Parameter startDate is required.');
     }
-    _queryParams['startDate'] = [startDate];
     if (endDate == null) {
       throw core.ArgumentError('Parameter endDate is required.');
     }
-    _queryParams['endDate'] = [endDate];
-    if (dimension != null) {
-      _queryParams['dimension'] = dimension;
-    }
-    if (filter != null) {
-      _queryParams['filter'] = filter;
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (metric != null) {
-      _queryParams['metric'] = metric;
-    }
-    if (sort != null) {
-      _queryParams['sort'] = sort;
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'startDate': [startDate],
+      'endDate': [endDate],
+      if (dimension != null) 'dimension': dimension,
+      if (filter != null) 'filter': filter,
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (metric != null) 'metric': metric,
+      if (sort != null) 'sort': sort,
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'reports';
 
@@ -1474,10 +1398,9 @@
     if (urlChannelId == null) {
       throw core.ArgumentError('Parameter urlChannelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1521,10 +1444,9 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
@@ -1573,16 +1495,11 @@
     if (adClientId == null) {
       throw core.ArgumentError('Parameter adClientId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'adclients/' +
         commons.Escaper.ecapeVariable('$adClientId') +
diff --git a/generated/googleapis/lib/analytics/v3.dart b/generated/googleapis/lib/analytics/v3.dart
index 5822417..9a2fdb6 100644
--- a/generated/googleapis/lib/analytics/v3.dart
+++ b/generated/googleapis/lib/analytics/v3.dart
@@ -220,53 +220,35 @@
     core.int startIndex,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (ids == null) {
       throw core.ArgumentError('Parameter ids is required.');
     }
-    _queryParams['ids'] = [ids];
     if (startDate == null) {
       throw core.ArgumentError('Parameter startDate is required.');
     }
-    _queryParams['start-date'] = [startDate];
     if (endDate == null) {
       throw core.ArgumentError('Parameter endDate is required.');
     }
-    _queryParams['end-date'] = [endDate];
     if (metrics == null) {
       throw core.ArgumentError('Parameter metrics is required.');
     }
-    _queryParams['metrics'] = [metrics];
-    if (dimensions != null) {
-      _queryParams['dimensions'] = [dimensions];
-    }
-    if (filters != null) {
-      _queryParams['filters'] = [filters];
-    }
-    if (includeEmptyRows != null) {
-      _queryParams['include-empty-rows'] = ['${includeEmptyRows}'];
-    }
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (output != null) {
-      _queryParams['output'] = [output];
-    }
-    if (samplingLevel != null) {
-      _queryParams['samplingLevel'] = [samplingLevel];
-    }
-    if (segment != null) {
-      _queryParams['segment'] = [segment];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'ids': [ids],
+      'start-date': [startDate],
+      'end-date': [endDate],
+      'metrics': [metrics],
+      if (dimensions != null) 'dimensions': [dimensions],
+      if (filters != null) 'filters': [filters],
+      if (includeEmptyRows != null)
+        'include-empty-rows': ['${includeEmptyRows}'],
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (output != null) 'output': [output],
+      if (samplingLevel != null) 'samplingLevel': [samplingLevel],
+      if (segment != null) 'segment': [segment],
+      if (sort != null) 'sort': [sort],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'data/ga';
 
@@ -357,44 +339,31 @@
     core.int startIndex,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (ids == null) {
       throw core.ArgumentError('Parameter ids is required.');
     }
-    _queryParams['ids'] = [ids];
     if (startDate == null) {
       throw core.ArgumentError('Parameter startDate is required.');
     }
-    _queryParams['start-date'] = [startDate];
     if (endDate == null) {
       throw core.ArgumentError('Parameter endDate is required.');
     }
-    _queryParams['end-date'] = [endDate];
     if (metrics == null) {
       throw core.ArgumentError('Parameter metrics is required.');
     }
-    _queryParams['metrics'] = [metrics];
-    if (dimensions != null) {
-      _queryParams['dimensions'] = [dimensions];
-    }
-    if (filters != null) {
-      _queryParams['filters'] = [filters];
-    }
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (samplingLevel != null) {
-      _queryParams['samplingLevel'] = [samplingLevel];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'ids': [ids],
+      'start-date': [startDate],
+      'end-date': [endDate],
+      'metrics': [metrics],
+      if (dimensions != null) 'dimensions': [dimensions],
+      if (filters != null) 'filters': [filters],
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (samplingLevel != null) 'samplingLevel': [samplingLevel],
+      if (sort != null) 'sort': [sort],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'data/mcf';
 
@@ -457,30 +426,21 @@
     core.String sort,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (ids == null) {
       throw core.ArgumentError('Parameter ids is required.');
     }
-    _queryParams['ids'] = [ids];
     if (metrics == null) {
       throw core.ArgumentError('Parameter metrics is required.');
     }
-    _queryParams['metrics'] = [metrics];
-    if (dimensions != null) {
-      _queryParams['dimensions'] = [dimensions];
-    }
-    if (filters != null) {
-      _queryParams['filters'] = [filters];
-    }
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'ids': [ids],
+      'metrics': [metrics],
+      if (dimensions != null) 'dimensions': [dimensions],
+      if (filters != null) 'filters': [filters],
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (sort != null) 'sort': [sort],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'data/realtime';
 
@@ -572,16 +532,11 @@
     core.int startIndex,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'management/accountSummaries';
 
@@ -628,10 +583,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -674,10 +628,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -725,16 +678,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -783,10 +731,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -833,16 +780,11 @@
     core.int startIndex,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'management/accounts';
 
@@ -882,10 +824,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'management/clientId:hashClientId';
 
@@ -946,16 +887,11 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1014,10 +950,9 @@
     if (customDimensionId == null) {
       throw core.ArgumentError('Parameter customDimensionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1069,10 +1004,9 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1127,16 +1061,11 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1201,15 +1130,11 @@
     if (customDimensionId == null) {
       throw core.ArgumentError('Parameter customDimensionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ignoreCustomDataSourceLinks != null) {
-      _queryParams['ignoreCustomDataSourceLinks'] = [
-        '${ignoreCustomDataSourceLinks}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ignoreCustomDataSourceLinks != null)
+        'ignoreCustomDataSourceLinks': ['${ignoreCustomDataSourceLinks}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1274,15 +1199,11 @@
     if (customDimensionId == null) {
       throw core.ArgumentError('Parameter customDimensionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ignoreCustomDataSourceLinks != null) {
-      _queryParams['ignoreCustomDataSourceLinks'] = [
-        '${ignoreCustomDataSourceLinks}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ignoreCustomDataSourceLinks != null)
+        'ignoreCustomDataSourceLinks': ['${ignoreCustomDataSourceLinks}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1343,10 +1264,9 @@
     if (customMetricId == null) {
       throw core.ArgumentError('Parameter customMetricId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1398,10 +1318,9 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1456,16 +1375,11 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1529,15 +1443,11 @@
     if (customMetricId == null) {
       throw core.ArgumentError('Parameter customMetricId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ignoreCustomDataSourceLinks != null) {
-      _queryParams['ignoreCustomDataSourceLinks'] = [
-        '${ignoreCustomDataSourceLinks}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ignoreCustomDataSourceLinks != null)
+        'ignoreCustomDataSourceLinks': ['${ignoreCustomDataSourceLinks}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1601,15 +1511,11 @@
     if (customMetricId == null) {
       throw core.ArgumentError('Parameter customMetricId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ignoreCustomDataSourceLinks != null) {
-      _queryParams['ignoreCustomDataSourceLinks'] = [
-        '${ignoreCustomDataSourceLinks}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ignoreCustomDataSourceLinks != null)
+        'ignoreCustomDataSourceLinks': ['${ignoreCustomDataSourceLinks}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1674,10 +1580,9 @@
     if (experimentId == null) {
       throw core.ArgumentError('Parameter experimentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1737,10 +1642,9 @@
     if (experimentId == null) {
       throw core.ArgumentError('Parameter experimentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1800,10 +1704,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1869,16 +1772,11 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1945,10 +1843,9 @@
     if (experimentId == null) {
       throw core.ArgumentError('Parameter experimentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2015,10 +1912,9 @@
     if (experimentId == null) {
       throw core.ArgumentError('Parameter experimentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2074,10 +1970,9 @@
     if (filterId == null) {
       throw core.ArgumentError('Parameter filterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2121,10 +2016,9 @@
     if (filterId == null) {
       throw core.ArgumentError('Parameter filterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2167,10 +2061,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2216,16 +2109,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2275,10 +2163,9 @@
     if (filterId == null) {
       throw core.ArgumentError('Parameter filterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2328,10 +2215,9 @@
     if (filterId == null) {
       throw core.ArgumentError('Parameter filterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2394,10 +2280,9 @@
     if (goalId == null) {
       throw core.ArgumentError('Parameter goalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2456,10 +2341,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2526,16 +2410,11 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2601,10 +2480,9 @@
     if (goalId == null) {
       throw core.ArgumentError('Parameter goalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2670,10 +2548,9 @@
     if (goalId == null) {
       throw core.ArgumentError('Parameter goalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2744,10 +2621,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2811,10 +2687,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2877,10 +2752,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2948,16 +2822,11 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3028,10 +2897,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3102,10 +2970,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3172,10 +3039,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3234,10 +3100,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3305,16 +3170,11 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3379,10 +3239,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3442,10 +3301,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3500,10 +3358,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3554,10 +3411,9 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3615,16 +3471,11 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3682,10 +3533,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3743,10 +3593,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3805,10 +3654,9 @@
     if (remarketingAudienceId == null) {
       throw core.ArgumentError('Parameter remarketingAudienceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3861,10 +3709,9 @@
     if (remarketingAudienceId == null) {
       throw core.ArgumentError('Parameter remarketingAudienceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3917,10 +3764,9 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -3979,19 +3825,12 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4051,10 +3890,9 @@
     if (remarketingAudienceId == null) {
       throw core.ArgumentError('Parameter remarketingAudienceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4114,10 +3952,9 @@
     if (remarketingAudienceId == null) {
       throw core.ArgumentError('Parameter remarketingAudienceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4166,16 +4003,11 @@
     core.int startIndex,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'management/segments';
 
@@ -4233,10 +4065,9 @@
     if (unsampledReportId == null) {
       throw core.ArgumentError('Parameter unsampledReportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4296,10 +4127,9 @@
     if (unsampledReportId == null) {
       throw core.ArgumentError('Parameter unsampledReportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4359,10 +4189,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4429,16 +4258,11 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4505,10 +4329,9 @@
     if (customDataSourceId == null) {
       throw core.ArgumentError('Parameter customDataSourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4572,10 +4395,9 @@
     if (uploadId == null) {
       throw core.ArgumentError('Parameter uploadId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4639,16 +4461,11 @@
     if (customDataSourceId == null) {
       throw core.ArgumentError('Parameter customDataSourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4712,10 +4529,9 @@
     if (customDataSourceId == null) {
       throw core.ArgumentError('Parameter customDataSourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -4795,10 +4611,9 @@
       throw core.ArgumentError(
           'Parameter webPropertyAdWordsLinkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4851,10 +4666,9 @@
       throw core.ArgumentError(
           'Parameter webPropertyAdWordsLinkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4906,10 +4720,9 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -4966,16 +4779,11 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5035,10 +4843,9 @@
       throw core.ArgumentError(
           'Parameter webPropertyAdWordsLinkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5098,10 +4905,9 @@
       throw core.ArgumentError(
           'Parameter webPropertyAdWordsLinkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5158,10 +4964,9 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5208,10 +5013,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5260,16 +5064,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5320,10 +5119,9 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5374,10 +5172,9 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5434,10 +5231,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5488,10 +5284,9 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5549,16 +5344,11 @@
     if (webPropertyId == null) {
       throw core.ArgumentError('Parameter webPropertyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['max-results'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['start-index'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'max-results': ['${maxResults}'],
+      if (startIndex != null) 'start-index': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5615,10 +5405,9 @@
     if (linkId == null) {
       throw core.ArgumentError('Parameter linkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'management/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -5676,10 +5465,9 @@
     if (reportType == null) {
       throw core.ArgumentError('Parameter reportType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'metadata/' + commons.Escaper.ecapeVariable('$reportType') + '/columns';
@@ -5720,10 +5508,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'provisioning/createAccountTicket';
 
@@ -5759,10 +5546,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'provisioning/createAccountTree';
 
@@ -5814,10 +5600,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'userDeletion/userDeletionRequests:upsert';
 
diff --git a/generated/googleapis/lib/analyticsreporting/v4.dart b/generated/googleapis/lib/analyticsreporting/v4.dart
index d6fddef..0ae93ec 100644
--- a/generated/googleapis/lib/analyticsreporting/v4.dart
+++ b/generated/googleapis/lib/analyticsreporting/v4.dart
@@ -87,10 +87,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v4/reports:batchGet';
 
@@ -132,10 +131,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v4/userActivity:search';
 
diff --git a/generated/googleapis/lib/androiddeviceprovisioning/v1.dart b/generated/googleapis/lib/androiddeviceprovisioning/v1.dart
index 3a98170..b13dea2 100644
--- a/generated/googleapis/lib/androiddeviceprovisioning/v1.dart
+++ b/generated/googleapis/lib/androiddeviceprovisioning/v1.dart
@@ -99,16 +99,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/customers';
 
@@ -160,10 +155,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -208,10 +202,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -248,10 +241,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -289,10 +281,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -345,13 +336,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -405,10 +393,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -448,10 +435,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -495,16 +481,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = [pageSize];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': [pageSize],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/devices';
@@ -548,10 +529,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -600,10 +580,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -650,10 +629,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/dpcs';
@@ -700,10 +678,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -767,10 +744,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/customers';
@@ -820,16 +796,11 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -882,10 +853,9 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -934,10 +904,9 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -981,10 +950,9 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -1033,10 +1001,9 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -1077,10 +1044,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1129,10 +1095,9 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$metadataOwnerId') +
@@ -1180,10 +1145,9 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -1231,10 +1195,9 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -1282,10 +1245,9 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -1341,16 +1303,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/vendors';
@@ -1403,16 +1360,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/customers';
diff --git a/generated/googleapis/lib/androidenterprise/v1.dart b/generated/googleapis/lib/androidenterprise/v1.dart
index d2e37c5..922db02 100644
--- a/generated/googleapis/lib/androidenterprise/v1.dart
+++ b/generated/googleapis/lib/androidenterprise/v1.dart
@@ -135,10 +135,9 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -191,10 +190,9 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -252,10 +250,9 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -303,10 +300,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -368,10 +364,9 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -441,13 +436,10 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -492,13 +484,10 @@
     core.String notificationSetId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (notificationSetId != null) {
-      _queryParams['notificationSetId'] = [notificationSetId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (notificationSetId != null) 'notificationSetId': [notificationSetId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'androidenterprise/v1/enterprises/acknowledgeNotificationSet';
 
@@ -538,16 +527,11 @@
     core.String enterpriseToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (completionToken != null) {
-      _queryParams['completionToken'] = [completionToken];
-    }
-    if (enterpriseToken != null) {
-      _queryParams['enterpriseToken'] = [enterpriseToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (completionToken != null) 'completionToken': [completionToken],
+      if (enterpriseToken != null) 'enterpriseToken': [enterpriseToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'androidenterprise/v1/enterprises/completeSignup';
 
@@ -592,10 +576,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -637,14 +620,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    _queryParams['token'] = [token];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'token': [token],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'androidenterprise/v1/enterprises/enroll';
 
@@ -685,13 +667,10 @@
     core.String callbackUrl,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (callbackUrl != null) {
-      _queryParams['callbackUrl'] = [callbackUrl];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (callbackUrl != null) 'callbackUrl': [callbackUrl],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'androidenterprise/v1/enterprises/signupUrl';
 
@@ -727,10 +706,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId');
@@ -789,13 +767,10 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (keyType != null) {
-      _queryParams['keyType'] = [keyType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (keyType != null) 'keyType': [keyType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -836,10 +811,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -880,14 +854,13 @@
     core.String domain, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (domain == null) {
       throw core.ArgumentError('Parameter domain is required.');
     }
-    _queryParams['domain'] = [domain];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'domain': [domain],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'androidenterprise/v1/enterprises';
 
@@ -945,13 +918,10 @@
     core.String requestMode,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestMode != null) {
-      _queryParams['requestMode'] = [requestMode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestMode != null) 'requestMode': [requestMode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'androidenterprise/v1/enterprises/pullNotificationSet';
 
@@ -989,10 +959,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1036,10 +1005,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1091,10 +1059,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1131,10 +1098,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1188,10 +1154,9 @@
     if (entitlementId == null) {
       throw core.ArgumentError('Parameter entitlementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1244,10 +1209,9 @@
     if (entitlementId == null) {
       throw core.ArgumentError('Parameter entitlementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1296,10 +1260,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1363,13 +1326,10 @@
     if (entitlementId == null) {
       throw core.ArgumentError('Parameter entitlementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (install != null) {
-      _queryParams['install'] = ['${install}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (install != null) 'install': ['${install}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1424,10 +1384,9 @@
     if (groupLicenseId == null) {
       throw core.ArgumentError('Parameter groupLicenseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1467,10 +1426,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1522,10 +1480,9 @@
     if (groupLicenseId == null) {
       throw core.ArgumentError('Parameter groupLicenseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1591,10 +1548,9 @@
     if (installId == null) {
       throw core.ArgumentError('Parameter installId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1655,10 +1611,9 @@
     if (installId == null) {
       throw core.ArgumentError('Parameter installId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1712,10 +1667,9 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1784,10 +1738,9 @@
     if (installId == null) {
       throw core.ArgumentError('Parameter installId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1856,10 +1809,9 @@
       throw core.ArgumentError(
           'Parameter managedConfigurationForDeviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1921,10 +1873,9 @@
       throw core.ArgumentError(
           'Parameter managedConfigurationForDeviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -1981,10 +1932,9 @@
     if (deviceId == null) {
       throw core.ArgumentError('Parameter deviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2052,10 +2002,9 @@
       throw core.ArgumentError(
           'Parameter managedConfigurationForDeviceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2119,10 +2068,9 @@
       throw core.ArgumentError(
           'Parameter managedConfigurationForUserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2177,10 +2125,9 @@
       throw core.ArgumentError(
           'Parameter managedConfigurationForUserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2229,10 +2176,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2297,10 +2243,9 @@
       throw core.ArgumentError(
           'Parameter managedConfigurationForUserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2356,10 +2301,9 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2410,13 +2354,10 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/permissions/' +
         commons.Escaper.ecapeVariable('$permissionId');
@@ -2473,10 +2414,9 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2535,13 +2475,10 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2591,13 +2528,10 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2652,13 +2586,10 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2704,10 +2635,9 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2772,25 +2702,14 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (approved != null) {
-      _queryParams['approved'] = ['${approved}'];
-    }
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (token != null) {
-      _queryParams['token'] = [token];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (approved != null) 'approved': ['${approved}'],
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (query != null) 'query': [query],
+      if (token != null) 'token': [token],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2833,10 +2752,9 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2890,10 +2808,9 @@
     if (keyId == null) {
       throw core.ArgumentError('Parameter keyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2942,10 +2859,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -2990,10 +2906,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3048,10 +2963,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3103,10 +3017,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3158,10 +3071,9 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3208,10 +3120,9 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3268,10 +3179,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3323,10 +3233,9 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3370,10 +3279,9 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3416,10 +3324,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3457,10 +3364,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3509,10 +3415,9 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3561,10 +3466,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3613,10 +3517,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3662,10 +3565,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3709,10 +3611,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3762,10 +3663,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3811,14 +3711,13 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (email == null) {
       throw core.ArgumentError('Parameter email is required.');
     }
-    _queryParams['email'] = [email];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'email': [email],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3863,10 +3762,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3920,10 +3818,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -3980,10 +3877,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -4032,10 +3928,9 @@
     if (webAppId == null) {
       throw core.ArgumentError('Parameter webAppId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -4079,10 +3974,9 @@
     if (webAppId == null) {
       throw core.ArgumentError('Parameter webAppId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -4125,10 +4019,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -4166,10 +4059,9 @@
     if (enterpriseId == null) {
       throw core.ArgumentError('Parameter enterpriseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
@@ -4218,10 +4110,9 @@
     if (webAppId == null) {
       throw core.ArgumentError('Parameter webAppId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidenterprise/v1/enterprises/' +
         commons.Escaper.ecapeVariable('$enterpriseId') +
diff --git a/generated/googleapis/lib/androidmanagement/v1.dart b/generated/googleapis/lib/androidmanagement/v1.dart
index 497d17c..34e69c8 100644
--- a/generated/googleapis/lib/androidmanagement/v1.dart
+++ b/generated/googleapis/lib/androidmanagement/v1.dart
@@ -122,22 +122,14 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (agreementAccepted != null) {
-      _queryParams['agreementAccepted'] = ['${agreementAccepted}'];
-    }
-    if (enterpriseToken != null) {
-      _queryParams['enterpriseToken'] = [enterpriseToken];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (signupUrlName != null) {
-      _queryParams['signupUrlName'] = [signupUrlName];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (agreementAccepted != null)
+        'agreementAccepted': ['${agreementAccepted}'],
+      if (enterpriseToken != null) 'enterpriseToken': [enterpriseToken],
+      if (projectId != null) 'projectId': [projectId],
+      if (signupUrlName != null) 'signupUrlName': [signupUrlName],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/enterprises';
 
@@ -178,10 +170,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -218,10 +209,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -275,22 +265,13 @@
     core.String view,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (projectId != null) 'projectId': [projectId],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/enterprises';
 
@@ -337,13 +318,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -394,13 +372,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -457,16 +432,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (wipeDataFlags != null) {
-      _queryParams['wipeDataFlags'] = wipeDataFlags;
-    }
-    if (wipeReasonMessage != null) {
-      _queryParams['wipeReasonMessage'] = [wipeReasonMessage];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (wipeDataFlags != null) 'wipeDataFlags': wipeDataFlags,
+      if (wipeReasonMessage != null) 'wipeReasonMessage': [wipeReasonMessage],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -503,10 +473,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -551,10 +520,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -602,16 +570,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/devices';
@@ -659,13 +622,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -719,10 +679,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -764,10 +723,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -807,10 +765,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -865,19 +822,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -927,10 +877,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -973,10 +922,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1023,10 +971,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1063,10 +1010,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1111,16 +1057,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/policies';
@@ -1168,13 +1109,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1223,10 +1161,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/webApps';
@@ -1265,10 +1202,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1305,10 +1241,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1353,16 +1288,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/webApps';
@@ -1410,13 +1340,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1467,10 +1394,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/webTokens';
@@ -1519,16 +1445,11 @@
     core.String projectId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (callbackUrl != null) {
-      _queryParams['callbackUrl'] = [callbackUrl];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (callbackUrl != null) 'callbackUrl': [callbackUrl],
+      if (projectId != null) 'projectId': [projectId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/signupUrls';
 
diff --git a/generated/googleapis/lib/androidpublisher/v3.dart b/generated/googleapis/lib/androidpublisher/v3.dart
index b52132b..5e86d92 100644
--- a/generated/googleapis/lib/androidpublisher/v3.dart
+++ b/generated/googleapis/lib/androidpublisher/v3.dart
@@ -134,10 +134,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -180,10 +179,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -227,10 +225,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -273,10 +270,9 @@
     if (packageName == null) {
       throw core.ArgumentError('Parameter packageName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -320,10 +316,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -383,10 +378,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -433,10 +427,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -490,10 +483,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -561,10 +553,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -629,15 +620,11 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ackBundleInstallationWarning != null) {
-      _queryParams['ackBundleInstallationWarning'] = [
-        '${ackBundleInstallationWarning}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ackBundleInstallationWarning != null)
+        'ackBundleInstallationWarning': ['${ackBundleInstallationWarning}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -732,10 +719,9 @@
     if (deobfuscationFileType == null) {
       throw core.ArgumentError('Parameter deobfuscationFileType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -813,10 +799,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -867,10 +852,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -922,10 +906,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -997,10 +980,9 @@
     if (expansionFileType == null) {
       throw core.ArgumentError('Parameter expansionFileType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1075,10 +1057,9 @@
     if (expansionFileType == null) {
       throw core.ArgumentError('Parameter expansionFileType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1154,10 +1135,9 @@
     if (expansionFileType == null) {
       throw core.ArgumentError('Parameter expansionFileType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1233,10 +1213,9 @@
     if (expansionFileType == null) {
       throw core.ArgumentError('Parameter expansionFileType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -1342,10 +1321,9 @@
     if (imageId == null) {
       throw core.ArgumentError('Parameter imageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1422,10 +1400,9 @@
     if (imageType == null) {
       throw core.ArgumentError('Parameter imageType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1501,10 +1478,9 @@
     if (imageType == null) {
       throw core.ArgumentError('Parameter imageType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1586,10 +1562,9 @@
     if (imageType == null) {
       throw core.ArgumentError('Parameter imageType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -1672,10 +1647,9 @@
     if (language == null) {
       throw core.ArgumentError('Parameter language is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1719,10 +1693,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1774,10 +1747,9 @@
     if (language == null) {
       throw core.ArgumentError('Parameter language is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1823,10 +1795,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1884,10 +1855,9 @@
     if (language == null) {
       throw core.ArgumentError('Parameter language is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -1946,10 +1916,9 @@
     if (language == null) {
       throw core.ArgumentError('Parameter language is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2008,10 +1977,9 @@
     if (track == null) {
       throw core.ArgumentError('Parameter track is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2068,10 +2036,9 @@
     if (track == null) {
       throw core.ArgumentError('Parameter track is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2129,10 +2096,9 @@
     if (track == null) {
       throw core.ArgumentError('Parameter track is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2191,10 +2157,9 @@
     if (track == null) {
       throw core.ArgumentError('Parameter track is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2240,10 +2205,9 @@
     if (editId == null) {
       throw core.ArgumentError('Parameter editId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2300,10 +2264,9 @@
     if (track == null) {
       throw core.ArgumentError('Parameter track is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2361,10 +2324,9 @@
     if (track == null) {
       throw core.ArgumentError('Parameter track is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2415,10 +2377,9 @@
     if (sku == null) {
       throw core.ArgumentError('Parameter sku is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2462,10 +2423,9 @@
     if (sku == null) {
       throw core.ArgumentError('Parameter sku is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2515,15 +2475,11 @@
     if (packageName == null) {
       throw core.ArgumentError('Parameter packageName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (autoConvertMissingPrices != null) {
-      _queryParams['autoConvertMissingPrices'] = [
-        '${autoConvertMissingPrices}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (autoConvertMissingPrices != null)
+        'autoConvertMissingPrices': ['${autoConvertMissingPrices}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2571,19 +2527,12 @@
     if (packageName == null) {
       throw core.ArgumentError('Parameter packageName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if (token != null) {
-      _queryParams['token'] = [token];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if (token != null) 'token': [token],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2638,15 +2587,11 @@
     if (sku == null) {
       throw core.ArgumentError('Parameter sku is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (autoConvertMissingPrices != null) {
-      _queryParams['autoConvertMissingPrices'] = [
-        '${autoConvertMissingPrices}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (autoConvertMissingPrices != null)
+        'autoConvertMissingPrices': ['${autoConvertMissingPrices}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2703,15 +2648,11 @@
     if (sku == null) {
       throw core.ArgumentError('Parameter sku is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (autoConvertMissingPrices != null) {
-      _queryParams['autoConvertMissingPrices'] = [
-        '${autoConvertMissingPrices}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (autoConvertMissingPrices != null)
+        'autoConvertMissingPrices': ['${autoConvertMissingPrices}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2772,10 +2713,9 @@
     if (packageName == null) {
       throw core.ArgumentError('Parameter packageName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -2841,10 +2781,9 @@
     if (packageName == null) {
       throw core.ArgumentError('Parameter packageName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -2915,13 +2854,10 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (revoke != null) {
-      _queryParams['revoke'] = ['${revoke}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (revoke != null) 'revoke': ['${revoke}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -2997,10 +2933,9 @@
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3057,10 +2992,9 @@
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3126,10 +3060,9 @@
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3186,10 +3119,9 @@
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3251,10 +3183,9 @@
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3313,10 +3244,9 @@
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3371,10 +3301,9 @@
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3431,10 +3360,9 @@
     if (token == null) {
       throw core.ArgumentError('Parameter token is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3522,28 +3450,15 @@
     if (packageName == null) {
       throw core.ArgumentError('Parameter packageName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endTime != null) {
-      _queryParams['endTime'] = [endTime];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if (token != null) {
-      _queryParams['token'] = [token];
-    }
-    if (type != null) {
-      _queryParams['type'] = ['${type}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endTime != null) 'endTime': [endTime],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if (startTime != null) 'startTime': [startTime],
+      if (token != null) 'token': [token],
+      if (type != null) 'type': ['${type}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3596,13 +3511,11 @@
     if (reviewId == null) {
       throw core.ArgumentError('Parameter reviewId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (translationLanguage != null) {
-      _queryParams['translationLanguage'] = [translationLanguage];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (translationLanguage != null)
+        'translationLanguage': [translationLanguage],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3652,22 +3565,14 @@
     if (packageName == null) {
       throw core.ArgumentError('Parameter packageName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if (token != null) {
-      _queryParams['token'] = [token];
-    }
-    if (translationLanguage != null) {
-      _queryParams['translationLanguage'] = [translationLanguage];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if (token != null) 'token': [token],
+      if (translationLanguage != null)
+        'translationLanguage': [translationLanguage],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3716,10 +3621,9 @@
     if (reviewId == null) {
       throw core.ArgumentError('Parameter reviewId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3787,10 +3691,9 @@
     if (versionCode == null) {
       throw core.ArgumentError('Parameter versionCode is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3846,10 +3749,9 @@
     if (variantId == null) {
       throw core.ArgumentError('Parameter variantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3908,10 +3810,9 @@
     if (variantId == null) {
       throw core.ArgumentError('Parameter variantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
@@ -3957,10 +3858,9 @@
     if (versionCode == null) {
       throw core.ArgumentError('Parameter versionCode is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'androidpublisher/v3/applications/' +
         commons.Escaper.ecapeVariable('$packageName') +
diff --git a/generated/googleapis/lib/apigateway/v1.dart b/generated/googleapis/lib/apigateway/v1.dart
index 00d867d..2522f7c 100644
--- a/generated/googleapis/lib/apigateway/v1.dart
+++ b/generated/googleapis/lib/apigateway/v1.dart
@@ -101,10 +101,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -150,19 +149,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -220,13 +212,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (apiId != null) {
-      _queryParams['apiId'] = [apiId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (apiId != null) 'apiId': [apiId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/apis';
@@ -267,10 +256,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -309,10 +297,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -364,15 +351,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -424,22 +407,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/apis';
@@ -491,13 +465,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -546,10 +517,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -602,10 +572,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -663,13 +632,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (apiConfigId != null) {
-      _queryParams['apiConfigId'] = [apiConfigId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (apiConfigId != null) 'apiConfigId': [apiConfigId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/configs';
@@ -710,10 +676,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -760,13 +725,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -818,15 +780,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -879,22 +837,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/configs';
@@ -946,13 +895,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1001,10 +947,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1057,10 +1002,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1117,13 +1061,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (gatewayId != null) {
-      _queryParams['gatewayId'] = [gatewayId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (gatewayId != null) 'gatewayId': [gatewayId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/gateways';
@@ -1164,10 +1105,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1206,10 +1146,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1261,15 +1200,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1321,22 +1256,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/gateways';
@@ -1388,13 +1314,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1443,10 +1366,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1499,10 +1421,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1564,10 +1485,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1610,10 +1530,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1653,10 +1572,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1711,19 +1629,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/apigee/v1.dart b/generated/googleapis/lib/apigee/v1.dart
index 0310f8b..ffd3228 100644
--- a/generated/googleapis/lib/apigee/v1.dart
+++ b/generated/googleapis/lib/apigee/v1.dart
@@ -172,10 +172,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -259,13 +258,10 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/organizations';
 
@@ -306,10 +302,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -350,10 +345,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -405,13 +399,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -463,10 +454,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -511,10 +501,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$parent');
 
@@ -567,10 +556,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -618,10 +606,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -682,10 +669,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -727,10 +713,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -769,10 +754,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -814,13 +798,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (targetType != null) {
-      _queryParams['targetType'] = [targetType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (targetType != null) 'targetType': [targetType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -868,10 +849,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -918,10 +898,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -986,10 +965,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/attributes';
@@ -1053,10 +1031,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1106,10 +1083,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1152,10 +1128,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1219,25 +1194,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (attributename != null) {
-      _queryParams['attributename'] = [attributename];
-    }
-    if (attributevalue != null) {
-      _queryParams['attributevalue'] = [attributevalue];
-    }
-    if (count != null) {
-      _queryParams['count'] = [count];
-    }
-    if (expand != null) {
-      _queryParams['expand'] = ['${expand}'];
-    }
-    if (startKey != null) {
-      _queryParams['startKey'] = [startKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (attributename != null) 'attributename': [attributename],
+      if (attributevalue != null) 'attributevalue': [attributevalue],
+      if (count != null) 'count': [count],
+      if (expand != null) 'expand': ['${expand}'],
+      if (startKey != null) 'startKey': [startKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1289,10 +1253,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1340,10 +1303,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1383,10 +1345,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1424,10 +1385,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1480,10 +1440,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1570,19 +1529,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (action != null) {
-      _queryParams['action'] = [action];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (validate != null) {
-      _queryParams['validate'] = ['${validate}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (action != null) 'action': [action],
+      if (name != null) 'name': [name],
+      if (validate != null) 'validate': ['${validate}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/apis';
@@ -1625,10 +1577,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1666,10 +1617,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1718,16 +1668,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeMetaData != null) {
-      _queryParams['includeMetaData'] = ['${includeMetaData}'];
-    }
-    if (includeRevisions != null) {
-      _queryParams['includeRevisions'] = ['${includeRevisions}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeMetaData != null) 'includeMetaData': ['${includeMetaData}'],
+      if (includeRevisions != null) 'includeRevisions': ['${includeRevisions}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/apis';
@@ -1773,10 +1718,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1829,10 +1773,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1874,10 +1817,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1929,10 +1871,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1984,13 +1925,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (format != null) {
-      _queryParams['format'] = [format];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (format != null) 'format': [format],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2044,13 +1982,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (validate != null) {
-      _queryParams['validate'] = ['${validate}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (validate != null) 'validate': ['${validate}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2098,10 +2033,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2147,10 +2081,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2222,37 +2155,18 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (apiProduct != null) {
-      _queryParams['apiProduct'] = [apiProduct];
-    }
-    if (apptype != null) {
-      _queryParams['apptype'] = [apptype];
-    }
-    if (expand != null) {
-      _queryParams['expand'] = ['${expand}'];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = [ids];
-    }
-    if (includeCred != null) {
-      _queryParams['includeCred'] = ['${includeCred}'];
-    }
-    if (keyStatus != null) {
-      _queryParams['keyStatus'] = [keyStatus];
-    }
-    if (rows != null) {
-      _queryParams['rows'] = [rows];
-    }
-    if (startKey != null) {
-      _queryParams['startKey'] = [startKey];
-    }
-    if (status != null) {
-      _queryParams['status'] = [status];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (apiProduct != null) 'apiProduct': [apiProduct],
+      if (apptype != null) 'apptype': [apptype],
+      if (expand != null) 'expand': ['${expand}'],
+      if (ids != null) 'ids': [ids],
+      if (includeCred != null) 'includeCred': ['${includeCred}'],
+      if (keyStatus != null) 'keyStatus': [keyStatus],
+      if (rows != null) 'rows': [rows],
+      if (startKey != null) 'startKey': [startKey],
+      if (status != null) 'status': [status],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/apps';
@@ -2307,13 +2221,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dataCollectorId != null) {
-      _queryParams['dataCollectorId'] = [dataCollectorId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dataCollectorId != null) 'dataCollectorId': [dataCollectorId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2354,10 +2265,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2395,10 +2305,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2444,16 +2353,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2501,13 +2405,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2559,13 +2460,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sharedFlows != null) {
-      _queryParams['sharedFlows'] = ['${sharedFlows}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sharedFlows != null) 'sharedFlows': ['${sharedFlows}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2633,10 +2531,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2687,10 +2584,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2740,10 +2636,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2789,13 +2684,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (action != null) {
-      _queryParams['action'] = [action];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (action != null) 'action': [action],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2868,28 +2760,15 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (app != null) {
-      _queryParams['app'] = [app];
-    }
-    if (count != null) {
-      _queryParams['count'] = [count];
-    }
-    if (expand != null) {
-      _queryParams['expand'] = ['${expand}'];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = [ids];
-    }
-    if (includeCompany != null) {
-      _queryParams['includeCompany'] = ['${includeCompany}'];
-    }
-    if (startKey != null) {
-      _queryParams['startKey'] = [startKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (app != null) 'app': [app],
+      if (count != null) 'count': [count],
+      if (expand != null) 'expand': ['${expand}'],
+      if (ids != null) 'ids': [ids],
+      if (includeCompany != null) 'includeCompany': ['${includeCompany}'],
+      if (startKey != null) 'startKey': [startKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2942,13 +2821,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (action != null) {
-      _queryParams['action'] = [action];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (action != null) 'action': [action],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3002,10 +2878,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3066,10 +2941,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/attributes';
@@ -3121,10 +2995,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/apps';
@@ -3171,10 +3044,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3247,13 +3119,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (action != null) {
-      _queryParams['action'] = [action];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (action != null) 'action': [action],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3306,16 +3175,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (entity != null) {
-      _queryParams['entity'] = [entity];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (entity != null) 'entity': [entity],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3380,22 +3244,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (count != null) {
-      _queryParams['count'] = [count];
-    }
-    if (expand != null) {
-      _queryParams['expand'] = ['${expand}'];
-    }
-    if (shallowExpand != null) {
-      _queryParams['shallowExpand'] = ['${shallowExpand}'];
-    }
-    if (startKey != null) {
-      _queryParams['startKey'] = [startKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (count != null) 'count': [count],
+      if (expand != null) 'expand': ['${expand}'],
+      if (shallowExpand != null) 'shallowExpand': ['${shallowExpand}'],
+      if (startKey != null) 'startKey': [startKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/apps';
@@ -3452,10 +3307,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3503,10 +3357,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3546,10 +3399,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3589,10 +3441,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3646,10 +3497,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3718,10 +3568,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/keys';
@@ -3771,10 +3620,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3815,10 +3663,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3869,10 +3716,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3929,13 +3775,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (action != null) {
-      _queryParams['action'] = [action];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (action != null) 'action': [action],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3988,10 +3831,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4041,13 +3883,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (action != null) {
-      _queryParams['action'] = [action];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (action != null) 'action': [action],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4110,10 +3949,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4163,10 +4001,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4206,10 +4043,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4248,10 +4084,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4305,10 +4140,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4366,13 +4200,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/envgroups';
@@ -4412,10 +4243,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4453,10 +4283,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4502,16 +4331,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/envgroups';
@@ -4558,13 +4382,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4615,10 +4436,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4661,10 +4481,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4704,10 +4523,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4755,16 +4573,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4850,13 +4663,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4897,10 +4707,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4938,10 +4747,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4980,10 +4788,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5023,10 +4830,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5079,15 +4885,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -5139,10 +4941,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -5186,10 +4987,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + ':subscribe';
@@ -5238,10 +5038,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -5287,10 +5086,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5341,10 +5139,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5397,16 +5194,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (replaceRepeatedFields != null) {
-      _queryParams['replaceRepeatedFields'] = ['${replaceRepeatedFields}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (replaceRepeatedFields != null)
+        'replaceRepeatedFields': ['${replaceRepeatedFields}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5455,10 +5248,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5526,13 +5318,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5586,10 +5375,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5634,10 +5422,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5676,10 +5463,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5739,10 +5525,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5830,16 +5615,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (override != null) {
-      _queryParams['override'] = ['${override}'];
-    }
-    if (sequencedRollout != null) {
-      _queryParams['sequencedRollout'] = ['${sequencedRollout}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (override != null) 'override': ['${override}'],
+      if (sequencedRollout != null) 'sequencedRollout': ['${sequencedRollout}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/deployments';
@@ -5881,10 +5661,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/deployments';
@@ -5943,13 +5722,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sequencedRollout != null) {
-      _queryParams['sequencedRollout'] = ['${sequencedRollout}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sequencedRollout != null) 'sequencedRollout': ['${sequencedRollout}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/deployments';
@@ -6011,13 +5787,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (timeout != null) {
-      _queryParams['timeout'] = [timeout];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (timeout != null) 'timeout': [timeout],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -6063,10 +5836,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/data';
@@ -6107,10 +5879,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6159,16 +5930,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -6218,10 +5984,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6288,13 +6053,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (override != null) {
-      _queryParams['override'] = ['${override}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (override != null) 'override': ['${override}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -6350,10 +6112,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -6401,10 +6162,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6456,13 +6216,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sharedFlows != null) {
-      _queryParams['sharedFlows'] = ['${sharedFlows}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sharedFlows != null) 'sharedFlows': ['${sharedFlows}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -6516,10 +6273,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6559,10 +6315,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6604,10 +6359,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6669,13 +6423,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/keystores';
@@ -6716,10 +6467,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6758,10 +6508,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6851,25 +6600,16 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (P_password != null) {
-      _queryParams['_password'] = [P_password];
-    }
-    if (alias != null) {
-      _queryParams['alias'] = [alias];
-    }
-    if (format != null) {
-      _queryParams['format'] = [format];
-    }
-    if (ignoreExpiryValidation != null) {
-      _queryParams['ignoreExpiryValidation'] = ['${ignoreExpiryValidation}'];
-    }
-    if (ignoreNewlineValidation != null) {
-      _queryParams['ignoreNewlineValidation'] = ['${ignoreNewlineValidation}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (P_password != null) '_password': [P_password],
+      if (alias != null) 'alias': [alias],
+      if (format != null) 'format': [format],
+      if (ignoreExpiryValidation != null)
+        'ignoreExpiryValidation': ['${ignoreExpiryValidation}'],
+      if (ignoreNewlineValidation != null)
+        'ignoreNewlineValidation': ['${ignoreNewlineValidation}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/aliases';
@@ -6912,10 +6652,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/csr';
@@ -6956,10 +6695,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6999,10 +6737,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7042,10 +6779,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/certificate';
@@ -7102,16 +6838,13 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ignoreExpiryValidation != null) {
-      _queryParams['ignoreExpiryValidation'] = ['${ignoreExpiryValidation}'];
-    }
-    if (ignoreNewlineValidation != null) {
-      _queryParams['ignoreNewlineValidation'] = ['${ignoreNewlineValidation}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ignoreExpiryValidation != null)
+        'ignoreExpiryValidation': ['${ignoreExpiryValidation}'],
+      if (ignoreNewlineValidation != null)
+        'ignoreNewlineValidation': ['${ignoreNewlineValidation}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7163,10 +6896,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -7208,10 +6940,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7325,55 +7056,24 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accuracy != null) {
-      _queryParams['accuracy'] = [accuracy];
-    }
-    if (aggTable != null) {
-      _queryParams['aggTable'] = [aggTable];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = [limit];
-    }
-    if (offset != null) {
-      _queryParams['offset'] = [offset];
-    }
-    if (realtime != null) {
-      _queryParams['realtime'] = ['${realtime}'];
-    }
-    if (select != null) {
-      _queryParams['select'] = [select];
-    }
-    if (sonar != null) {
-      _queryParams['sonar'] = ['${sonar}'];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if (sortby != null) {
-      _queryParams['sortby'] = [sortby];
-    }
-    if (timeRange != null) {
-      _queryParams['timeRange'] = [timeRange];
-    }
-    if (timeUnit != null) {
-      _queryParams['timeUnit'] = [timeUnit];
-    }
-    if (topk != null) {
-      _queryParams['topk'] = [topk];
-    }
-    if (tsAscending != null) {
-      _queryParams['tsAscending'] = ['${tsAscending}'];
-    }
-    if (tzo != null) {
-      _queryParams['tzo'] = [tzo];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accuracy != null) 'accuracy': [accuracy],
+      if (aggTable != null) 'aggTable': [aggTable],
+      if (filter != null) 'filter': [filter],
+      if (limit != null) 'limit': [limit],
+      if (offset != null) 'offset': [offset],
+      if (realtime != null) 'realtime': ['${realtime}'],
+      if (select != null) 'select': [select],
+      if (sonar != null) 'sonar': ['${sonar}'],
+      if (sort != null) 'sort': [sort],
+      if (sortby != null) 'sortby': [sortby],
+      if (timeRange != null) 'timeRange': [timeRange],
+      if (timeUnit != null) 'timeUnit': [timeUnit],
+      if (topk != null) 'topk': [topk],
+      if (tsAscending != null) 'tsAscending': ['${tsAscending}'],
+      if (tzo != null) 'tzo': [tzo],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7427,10 +7127,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/queries';
@@ -7473,10 +7172,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7521,10 +7219,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7585,28 +7282,16 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dataset != null) {
-      _queryParams['dataset'] = [dataset];
-    }
-    if (from != null) {
-      _queryParams['from'] = [from];
-    }
-    if (inclQueriesWithoutReport != null) {
-      _queryParams['inclQueriesWithoutReport'] = [inclQueriesWithoutReport];
-    }
-    if (status != null) {
-      _queryParams['status'] = [status];
-    }
-    if (submittedBy != null) {
-      _queryParams['submittedBy'] = [submittedBy];
-    }
-    if (to != null) {
-      _queryParams['to'] = [to];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dataset != null) 'dataset': [dataset],
+      if (from != null) 'from': [from],
+      if (inclQueriesWithoutReport != null)
+        'inclQueriesWithoutReport': [inclQueriesWithoutReport],
+      if (status != null) 'status': [status],
+      if (submittedBy != null) 'submittedBy': [submittedBy],
+      if (to != null) 'to': [to],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/queries';
@@ -7658,10 +7343,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -7705,10 +7389,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7747,10 +7430,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7797,10 +7479,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7863,16 +7544,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -7929,10 +7605,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -7991,10 +7666,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -8044,13 +7718,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -8101,10 +7772,9 @@
     if (type == null) {
       throw core.ArgumentError('Parameter type is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -8167,10 +7837,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -8236,10 +7905,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -8308,13 +7976,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (override != null) {
-      _queryParams['override'] = ['${override}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (override != null) 'override': ['${override}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/deployments';
@@ -8356,10 +8021,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/deployments';
@@ -8407,10 +8071,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/deployments';
@@ -8527,55 +8190,24 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accuracy != null) {
-      _queryParams['accuracy'] = [accuracy];
-    }
-    if (aggTable != null) {
-      _queryParams['aggTable'] = [aggTable];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = [limit];
-    }
-    if (offset != null) {
-      _queryParams['offset'] = [offset];
-    }
-    if (realtime != null) {
-      _queryParams['realtime'] = ['${realtime}'];
-    }
-    if (select != null) {
-      _queryParams['select'] = [select];
-    }
-    if (sonar != null) {
-      _queryParams['sonar'] = ['${sonar}'];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if (sortby != null) {
-      _queryParams['sortby'] = [sortby];
-    }
-    if (timeRange != null) {
-      _queryParams['timeRange'] = [timeRange];
-    }
-    if (timeUnit != null) {
-      _queryParams['timeUnit'] = [timeUnit];
-    }
-    if (topk != null) {
-      _queryParams['topk'] = [topk];
-    }
-    if (tsAscending != null) {
-      _queryParams['tsAscending'] = ['${tsAscending}'];
-    }
-    if (tzo != null) {
-      _queryParams['tzo'] = [tzo];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accuracy != null) 'accuracy': [accuracy],
+      if (aggTable != null) 'aggTable': [aggTable],
+      if (filter != null) 'filter': [filter],
+      if (limit != null) 'limit': [limit],
+      if (offset != null) 'offset': [offset],
+      if (realtime != null) 'realtime': ['${realtime}'],
+      if (select != null) 'select': [select],
+      if (sonar != null) 'sonar': ['${sonar}'],
+      if (sort != null) 'sort': [sort],
+      if (sortby != null) 'sortby': [sortby],
+      if (timeRange != null) 'timeRange': [timeRange],
+      if (timeUnit != null) 'timeUnit': [timeUnit],
+      if (topk != null) 'topk': [topk],
+      if (tsAscending != null) 'tsAscending': ['${tsAscending}'],
+      if (tzo != null) 'tzo': [tzo],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -8630,13 +8262,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -8681,10 +8310,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -8724,10 +8352,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -8775,10 +8402,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -8833,10 +8459,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -8880,10 +8505,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -8927,10 +8551,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -8967,10 +8590,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -9034,31 +8656,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dataset != null) {
-      _queryParams['dataset'] = [dataset];
-    }
-    if (envgroupHostname != null) {
-      _queryParams['envgroupHostname'] = [envgroupHostname];
-    }
-    if (from != null) {
-      _queryParams['from'] = [from];
-    }
-    if (inclQueriesWithoutReport != null) {
-      _queryParams['inclQueriesWithoutReport'] = [inclQueriesWithoutReport];
-    }
-    if (status != null) {
-      _queryParams['status'] = [status];
-    }
-    if (submittedBy != null) {
-      _queryParams['submittedBy'] = [submittedBy];
-    }
-    if (to != null) {
-      _queryParams['to'] = [to];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dataset != null) 'dataset': [dataset],
+      if (envgroupHostname != null) 'envgroupHostname': [envgroupHostname],
+      if (from != null) 'from': [from],
+      if (inclQueriesWithoutReport != null)
+        'inclQueriesWithoutReport': [inclQueriesWithoutReport],
+      if (status != null) 'status': [status],
+      if (submittedBy != null) 'submittedBy': [submittedBy],
+      if (to != null) 'to': [to],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -9167,52 +8775,23 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accuracy != null) {
-      _queryParams['accuracy'] = [accuracy];
-    }
-    if (envgroupHostname != null) {
-      _queryParams['envgroupHostname'] = [envgroupHostname];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = [limit];
-    }
-    if (offset != null) {
-      _queryParams['offset'] = [offset];
-    }
-    if (realtime != null) {
-      _queryParams['realtime'] = ['${realtime}'];
-    }
-    if (select != null) {
-      _queryParams['select'] = [select];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if (sortby != null) {
-      _queryParams['sortby'] = [sortby];
-    }
-    if (timeRange != null) {
-      _queryParams['timeRange'] = [timeRange];
-    }
-    if (timeUnit != null) {
-      _queryParams['timeUnit'] = [timeUnit];
-    }
-    if (topk != null) {
-      _queryParams['topk'] = [topk];
-    }
-    if (tsAscending != null) {
-      _queryParams['tsAscending'] = ['${tsAscending}'];
-    }
-    if (tzo != null) {
-      _queryParams['tzo'] = [tzo];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accuracy != null) 'accuracy': [accuracy],
+      if (envgroupHostname != null) 'envgroupHostname': [envgroupHostname],
+      if (filter != null) 'filter': [filter],
+      if (limit != null) 'limit': [limit],
+      if (offset != null) 'offset': [offset],
+      if (realtime != null) 'realtime': ['${realtime}'],
+      if (select != null) 'select': [select],
+      if (sort != null) 'sort': [sort],
+      if (sortby != null) 'sortby': [sortby],
+      if (timeRange != null) 'timeRange': [timeRange],
+      if (timeUnit != null) 'timeUnit': [timeUnit],
+      if (topk != null) 'topk': [topk],
+      if (tsAscending != null) 'tsAscending': ['${tsAscending}'],
+      if (tzo != null) 'tzo': [tzo],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -9272,10 +8851,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -9318,10 +8896,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -9361,10 +8938,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -9411,16 +8987,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -9465,10 +9036,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$instance') +
@@ -9523,10 +9093,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -9571,10 +9140,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -9616,10 +9184,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -9667,16 +9234,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -9728,10 +9290,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -9774,10 +9335,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -9832,10 +9392,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':activate';
@@ -9886,10 +9445,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -9935,10 +9493,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -9980,10 +9537,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -10030,16 +9586,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -10091,10 +9642,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -10135,10 +9685,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -10185,10 +9734,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -10243,19 +9791,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -10358,52 +9899,23 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accuracy != null) {
-      _queryParams['accuracy'] = [accuracy];
-    }
-    if (envgroupHostname != null) {
-      _queryParams['envgroupHostname'] = [envgroupHostname];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = [limit];
-    }
-    if (offset != null) {
-      _queryParams['offset'] = [offset];
-    }
-    if (realtime != null) {
-      _queryParams['realtime'] = ['${realtime}'];
-    }
-    if (select != null) {
-      _queryParams['select'] = [select];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if (sortby != null) {
-      _queryParams['sortby'] = [sortby];
-    }
-    if (timeRange != null) {
-      _queryParams['timeRange'] = [timeRange];
-    }
-    if (timeUnit != null) {
-      _queryParams['timeUnit'] = [timeUnit];
-    }
-    if (topk != null) {
-      _queryParams['topk'] = [topk];
-    }
-    if (tsAscending != null) {
-      _queryParams['tsAscending'] = ['${tsAscending}'];
-    }
-    if (tzo != null) {
-      _queryParams['tzo'] = [tzo];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accuracy != null) 'accuracy': [accuracy],
+      if (envgroupHostname != null) 'envgroupHostname': [envgroupHostname],
+      if (filter != null) 'filter': [filter],
+      if (limit != null) 'limit': [limit],
+      if (offset != null) 'offset': [offset],
+      if (realtime != null) 'realtime': ['${realtime}'],
+      if (select != null) 'select': [select],
+      if (sort != null) 'sort': [sort],
+      if (sortby != null) 'sortby': [sortby],
+      if (timeRange != null) 'timeRange': [timeRange],
+      if (timeUnit != null) 'timeUnit': [timeUnit],
+      if (topk != null) 'topk': [topk],
+      if (tsAscending != null) 'tsAscending': ['${tsAscending}'],
+      if (tzo != null) 'tzo': [tzo],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -10461,10 +9973,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/reports';
@@ -10504,10 +10015,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -10545,10 +10055,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -10589,13 +10098,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (expand != null) {
-      _queryParams['expand'] = ['${expand}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (expand != null) 'expand': ['${expand}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/reports';
@@ -10639,10 +10145,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -10711,16 +10216,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (action != null) {
-      _queryParams['action'] = [action];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (action != null) 'action': [action],
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -10763,10 +10263,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -10804,10 +10303,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -10853,16 +10351,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeMetaData != null) {
-      _queryParams['includeMetaData'] = ['${includeMetaData}'];
-    }
-    if (includeRevisions != null) {
-      _queryParams['includeRevisions'] = ['${includeRevisions}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeMetaData != null) 'includeMetaData': ['${includeMetaData}'],
+      if (includeRevisions != null) 'includeRevisions': ['${includeRevisions}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -10910,10 +10403,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -10968,10 +10460,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -11018,13 +10509,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (format != null) {
-      _queryParams['format'] = [format];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (format != null) 'format': [format],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -11079,13 +10567,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (validate != null) {
-      _queryParams['validate'] = ['${validate}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (validate != null) 'validate': ['${validate}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -11134,10 +10619,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -11198,10 +10682,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -11244,10 +10727,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -11287,10 +10769,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -11328,10 +10809,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -11378,10 +10858,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -11434,10 +10913,9 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$project') +
diff --git a/generated/googleapis/lib/appengine/v1.dart b/generated/googleapis/lib/appengine/v1.dart
index ea3616a..dc92526 100644
--- a/generated/googleapis/lib/appengine/v1.dart
+++ b/generated/googleapis/lib/appengine/v1.dart
@@ -118,10 +118,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/apps';
 
@@ -158,10 +157,9 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' + commons.Escaper.ecapeVariable('$appsId');
 
@@ -210,13 +208,10 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' + commons.Escaper.ecapeVariable('$appsId');
 
@@ -268,10 +263,9 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/apps/' + commons.Escaper.ecapeVariable('$appsId') + ':repair';
@@ -321,10 +315,9 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -372,10 +365,9 @@
       throw core.ArgumentError(
           'Parameter authorizedCertificatesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -431,13 +423,10 @@
       throw core.ArgumentError(
           'Parameter authorizedCertificatesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -492,19 +481,12 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -566,13 +548,10 @@
       throw core.ArgumentError(
           'Parameter authorizedCertificatesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -626,16 +605,11 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -703,13 +677,10 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (overrideStrategy != null) {
-      _queryParams['overrideStrategy'] = [overrideStrategy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (overrideStrategy != null) 'overrideStrategy': [overrideStrategy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -757,10 +728,9 @@
     if (domainMappingsId == null) {
       throw core.ArgumentError('Parameter domainMappingsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -805,10 +775,9 @@
     if (domainMappingsId == null) {
       throw core.ArgumentError('Parameter domainMappingsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -854,16 +823,11 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -921,13 +885,10 @@
     if (domainMappingsId == null) {
       throw core.ArgumentError('Parameter domainMappingsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -993,10 +954,9 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1041,10 +1001,9 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1090,10 +1049,9 @@
     if (ingressRulesId == null) {
       throw core.ArgumentError('Parameter ingressRulesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1138,10 +1096,9 @@
     if (ingressRulesId == null) {
       throw core.ArgumentError('Parameter ingressRulesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1192,19 +1149,12 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (matchingAddress != null) {
-      _queryParams['matchingAddress'] = [matchingAddress];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (matchingAddress != null) 'matchingAddress': [matchingAddress],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1257,13 +1207,10 @@
     if (ingressRulesId == null) {
       throw core.ArgumentError('Parameter ingressRulesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1315,10 +1262,9 @@
     if (locationsId == null) {
       throw core.ArgumentError('Parameter locationsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1366,19 +1312,12 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/apps/' + commons.Escaper.ecapeVariable('$appsId') + '/locations';
@@ -1430,10 +1369,9 @@
     if (operationsId == null) {
       throw core.ArgumentError('Parameter operationsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1489,19 +1427,12 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/apps/' + commons.Escaper.ecapeVariable('$appsId') + '/operations';
@@ -1554,10 +1485,9 @@
     if (servicesId == null) {
       throw core.ArgumentError('Parameter servicesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1602,10 +1532,9 @@
     if (servicesId == null) {
       throw core.ArgumentError('Parameter servicesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1650,16 +1579,11 @@
     if (appsId == null) {
       throw core.ArgumentError('Parameter appsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/apps/' + commons.Escaper.ecapeVariable('$appsId') + '/services';
@@ -1726,16 +1650,11 @@
     if (servicesId == null) {
       throw core.ArgumentError('Parameter servicesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (migrateTraffic != null) {
-      _queryParams['migrateTraffic'] = ['${migrateTraffic}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (migrateTraffic != null) 'migrateTraffic': ['${migrateTraffic}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1796,10 +1715,9 @@
     if (servicesId == null) {
       throw core.ArgumentError('Parameter servicesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1852,10 +1770,9 @@
     if (versionsId == null) {
       throw core.ArgumentError('Parameter versionsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1920,13 +1837,10 @@
     if (versionsId == null) {
       throw core.ArgumentError('Parameter versionsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -1988,19 +1902,12 @@
     if (servicesId == null) {
       throw core.ArgumentError('Parameter servicesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -2094,13 +2001,10 @@
     if (versionsId == null) {
       throw core.ArgumentError('Parameter versionsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -2179,10 +2083,9 @@
     if (instancesId == null) {
       throw core.ArgumentError('Parameter instancesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -2257,10 +2160,9 @@
     if (instancesId == null) {
       throw core.ArgumentError('Parameter instancesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -2321,10 +2223,9 @@
     if (instancesId == null) {
       throw core.ArgumentError('Parameter instancesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
@@ -2387,16 +2288,11 @@
     if (versionsId == null) {
       throw core.ArgumentError('Parameter versionsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/apps/' +
         commons.Escaper.ecapeVariable('$appsId') +
diff --git a/generated/googleapis/lib/artifactregistry/v1.dart b/generated/googleapis/lib/artifactregistry/v1.dart
index 0cdb2c8..cc9347a 100644
--- a/generated/googleapis/lib/artifactregistry/v1.dart
+++ b/generated/googleapis/lib/artifactregistry/v1.dart
@@ -103,10 +103,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -148,10 +147,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -190,10 +188,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -243,22 +240,13 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (name != null) 'name': [name],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/operations';
 
diff --git a/generated/googleapis/lib/assuredworkloads/v1.dart b/generated/googleapis/lib/assuredworkloads/v1.dart
index f78bc8b..92ea85b 100644
--- a/generated/googleapis/lib/assuredworkloads/v1.dart
+++ b/generated/googleapis/lib/assuredworkloads/v1.dart
@@ -109,10 +109,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -167,19 +166,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -236,13 +228,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (externalId != null) {
-      _queryParams['externalId'] = [externalId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (externalId != null) 'externalId': [externalId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/workloads';
@@ -291,13 +280,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (etag != null) {
-      _queryParams['etag'] = [etag];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (etag != null) 'etag': [etag],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -339,10 +325,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -392,19 +377,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/workloads';
@@ -457,13 +435,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/bigquery/v2.dart b/generated/googleapis/lib/bigquery/v2.dart
index 8f42839..e06d059 100644
--- a/generated/googleapis/lib/bigquery/v2.dart
+++ b/generated/googleapis/lib/bigquery/v2.dart
@@ -145,13 +145,10 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (deleteContents != null) {
-      _queryParams['deleteContents'] = ['${deleteContents}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (deleteContents != null) 'deleteContents': ['${deleteContents}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -195,10 +192,9 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -241,10 +237,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$projectId') + '/datasets';
@@ -299,22 +294,13 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (all != null) {
-      _queryParams['all'] = ['${all}'];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (all != null) 'all': ['${all}'],
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$projectId') + '/datasets';
@@ -366,10 +352,9 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -423,10 +408,9 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -486,13 +470,10 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (location != null) 'location': [location],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -547,13 +528,10 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (location != null) 'location': [location],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -617,25 +595,14 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = [startIndex];
-    }
-    if (timeoutMs != null) {
-      _queryParams['timeoutMs'] = ['${timeoutMs}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (location != null) 'location': [location],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startIndex != null) 'startIndex': [startIndex],
+      if (timeoutMs != null) 'timeoutMs': ['${timeoutMs}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -689,10 +656,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -781,34 +747,17 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (allUsers != null) {
-      _queryParams['allUsers'] = ['${allUsers}'];
-    }
-    if (maxCreationTime != null) {
-      _queryParams['maxCreationTime'] = [maxCreationTime];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (minCreationTime != null) {
-      _queryParams['minCreationTime'] = [minCreationTime];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parentJobId != null) {
-      _queryParams['parentJobId'] = [parentJobId];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (stateFilter != null) {
-      _queryParams['stateFilter'] = stateFilter;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (allUsers != null) 'allUsers': ['${allUsers}'],
+      if (maxCreationTime != null) 'maxCreationTime': [maxCreationTime],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (minCreationTime != null) 'minCreationTime': [minCreationTime],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parentJobId != null) 'parentJobId': [parentJobId],
+      if (projection != null) 'projection': [projection],
+      if (stateFilter != null) 'stateFilter': stateFilter,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$projectId') + '/jobs';
@@ -850,10 +799,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$projectId') + '/queries';
@@ -910,10 +858,9 @@
     if (modelId == null) {
       throw core.ArgumentError('Parameter modelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -968,10 +915,9 @@
     if (modelId == null) {
       throw core.ArgumentError('Parameter modelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -1030,16 +976,11 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -1099,10 +1040,9 @@
     if (modelId == null) {
       throw core.ArgumentError('Parameter modelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -1150,10 +1090,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1192,16 +1131,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'projects';
 
@@ -1256,10 +1190,9 @@
     if (routineId == null) {
       throw core.ArgumentError('Parameter routineId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -1318,13 +1251,10 @@
     if (routineId == null) {
       throw core.ArgumentError('Parameter routineId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (readMask != null) {
-      _queryParams['readMask'] = [readMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (readMask != null) 'readMask': [readMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -1377,10 +1307,9 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -1452,22 +1381,13 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readMask != null) {
-      _queryParams['readMask'] = [readMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readMask != null) 'readMask': [readMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -1529,10 +1449,9 @@
     if (routineId == null) {
       throw core.ArgumentError('Parameter routineId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -1591,10 +1510,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         commons.Escaper.ecapeVariableReserved('$resource') + ':getIamPolicy';
@@ -1654,16 +1572,11 @@
     if (tableId == null) {
       throw core.ArgumentError('Parameter tableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariableReserved('$projectId') +
@@ -1717,10 +1630,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         commons.Escaper.ecapeVariableReserved('$resource') + ':setIamPolicy';
@@ -1771,10 +1683,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariableReserved('$resource') +
         ':testIamPermissions';
@@ -1838,10 +1749,9 @@
     if (tableId == null) {
       throw core.ArgumentError('Parameter tableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1912,22 +1822,13 @@
     if (tableId == null) {
       throw core.ArgumentError('Parameter tableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (selectedFields != null) {
-      _queryParams['selectedFields'] = [selectedFields];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = [startIndex];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (selectedFields != null) 'selectedFields': [selectedFields],
+      if (startIndex != null) 'startIndex': [startIndex],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1987,10 +1888,9 @@
     if (tableId == null) {
       throw core.ArgumentError('Parameter tableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2049,13 +1949,10 @@
     if (tableId == null) {
       throw core.ArgumentError('Parameter tableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (selectedFields != null) {
-      _queryParams['selectedFields'] = [selectedFields];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (selectedFields != null) 'selectedFields': [selectedFields],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2107,10 +2004,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         commons.Escaper.ecapeVariableReserved('$resource') + ':getIamPolicy';
@@ -2158,10 +2054,9 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2216,16 +2111,11 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2285,10 +2175,9 @@
     if (tableId == null) {
       throw core.ArgumentError('Parameter tableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2341,10 +2230,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         commons.Escaper.ecapeVariableReserved('$resource') + ':setIamPolicy';
@@ -2395,10 +2283,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariableReserved('$resource') +
         ':testIamPermissions';
@@ -2457,10 +2344,9 @@
     if (tableId == null) {
       throw core.ArgumentError('Parameter tableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
diff --git a/generated/googleapis/lib/bigquerydatatransfer/v1.dart b/generated/googleapis/lib/bigquerydatatransfer/v1.dart
index 61bbd32..519e13f 100644
--- a/generated/googleapis/lib/bigquerydatatransfer/v1.dart
+++ b/generated/googleapis/lib/bigquerydatatransfer/v1.dart
@@ -132,10 +132,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -178,10 +177,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -231,16 +229,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -290,10 +283,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -338,19 +330,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -409,10 +394,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -456,10 +440,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -509,16 +492,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -606,19 +584,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (authorizationCode != null) {
-      _queryParams['authorizationCode'] = [authorizationCode];
-    }
-    if (serviceAccountName != null) {
-      _queryParams['serviceAccountName'] = [serviceAccountName];
-    }
-    if (versionInfo != null) {
-      _queryParams['versionInfo'] = [versionInfo];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (authorizationCode != null) 'authorizationCode': [authorizationCode],
+      if (serviceAccountName != null)
+        'serviceAccountName': [serviceAccountName],
+      if (versionInfo != null) 'versionInfo': [versionInfo],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -662,10 +634,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -704,10 +675,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -760,19 +730,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dataSourceIds != null) {
-      _queryParams['dataSourceIds'] = dataSourceIds;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dataSourceIds != null) 'dataSourceIds': dataSourceIds,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -860,22 +823,14 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (authorizationCode != null) {
-      _queryParams['authorizationCode'] = [authorizationCode];
-    }
-    if (serviceAccountName != null) {
-      _queryParams['serviceAccountName'] = [serviceAccountName];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if (versionInfo != null) {
-      _queryParams['versionInfo'] = [versionInfo];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (authorizationCode != null) 'authorizationCode': [authorizationCode],
+      if (serviceAccountName != null)
+        'serviceAccountName': [serviceAccountName],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if (versionInfo != null) 'versionInfo': [versionInfo],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -925,10 +880,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -981,10 +935,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1038,10 +991,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1081,10 +1033,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1145,22 +1096,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (runAttempt != null) {
-      _queryParams['runAttempt'] = [runAttempt];
-    }
-    if (states != null) {
-      _queryParams['states'] = states;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (runAttempt != null) 'runAttempt': [runAttempt],
+      if (states != null) 'states': states,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/runs';
@@ -1223,19 +1165,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (messageTypes != null) {
-      _queryParams['messageTypes'] = messageTypes;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (messageTypes != null) 'messageTypes': messageTypes,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1323,19 +1258,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (authorizationCode != null) {
-      _queryParams['authorizationCode'] = [authorizationCode];
-    }
-    if (serviceAccountName != null) {
-      _queryParams['serviceAccountName'] = [serviceAccountName];
-    }
-    if (versionInfo != null) {
-      _queryParams['versionInfo'] = [versionInfo];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (authorizationCode != null) 'authorizationCode': [authorizationCode],
+      if (serviceAccountName != null)
+        'serviceAccountName': [serviceAccountName],
+      if (versionInfo != null) 'versionInfo': [versionInfo],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1378,10 +1307,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1419,10 +1347,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1475,19 +1402,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dataSourceIds != null) {
-      _queryParams['dataSourceIds'] = dataSourceIds;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dataSourceIds != null) 'dataSourceIds': dataSourceIds,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1574,22 +1494,14 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (authorizationCode != null) {
-      _queryParams['authorizationCode'] = [authorizationCode];
-    }
-    if (serviceAccountName != null) {
-      _queryParams['serviceAccountName'] = [serviceAccountName];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if (versionInfo != null) {
-      _queryParams['versionInfo'] = [versionInfo];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (authorizationCode != null) 'authorizationCode': [authorizationCode],
+      if (serviceAccountName != null)
+        'serviceAccountName': [serviceAccountName],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if (versionInfo != null) 'versionInfo': [versionInfo],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1638,10 +1550,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1693,10 +1604,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1750,10 +1660,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1793,10 +1702,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1856,22 +1764,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (runAttempt != null) {
-      _queryParams['runAttempt'] = [runAttempt];
-    }
-    if (states != null) {
-      _queryParams['states'] = states;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (runAttempt != null) 'runAttempt': [runAttempt],
+      if (states != null) 'states': states,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/runs';
@@ -1933,19 +1832,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (messageTypes != null) {
-      _queryParams['messageTypes'] = messageTypes;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (messageTypes != null) 'messageTypes': messageTypes,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/bigqueryreservation/v1.dart b/generated/googleapis/lib/bigqueryreservation/v1.dart
index 83e1cda..f66885c 100644
--- a/generated/googleapis/lib/bigqueryreservation/v1.dart
+++ b/generated/googleapis/lib/bigqueryreservation/v1.dart
@@ -96,10 +96,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -153,19 +152,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -224,10 +216,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -289,19 +280,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -366,19 +350,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -433,13 +410,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -494,15 +468,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleAdminProjectPerOrg != null) {
-      _queryParams['enforceSingleAdminProjectPerOrg'] = [
-        '${enforceSingleAdminProjectPerOrg}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleAdminProjectPerOrg != null)
+        'enforceSingleAdminProjectPerOrg': [
+          '${enforceSingleAdminProjectPerOrg}'
+        ],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -547,10 +519,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -588,10 +559,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -636,16 +606,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -695,10 +660,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -753,13 +717,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -810,10 +771,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':split';
@@ -872,13 +832,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (reservationId != null) {
-      _queryParams['reservationId'] = [reservationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (reservationId != null) 'reservationId': [reservationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -923,10 +880,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -964,10 +920,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1012,16 +967,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1070,13 +1020,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1146,10 +1093,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1199,10 +1145,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1259,16 +1204,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1318,10 +1258,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
diff --git a/generated/googleapis/lib/bigtableadmin/v2.dart b/generated/googleapis/lib/bigtableadmin/v2.dart
index ba47de8..a2fed7e 100644
--- a/generated/googleapis/lib/bigtableadmin/v2.dart
+++ b/generated/googleapis/lib/bigtableadmin/v2.dart
@@ -137,10 +137,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -181,10 +180,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -223,10 +221,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -296,19 +293,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -376,10 +366,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -418,10 +407,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -458,10 +446,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -507,10 +494,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -553,13 +539,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -610,13 +593,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -662,10 +642,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -712,10 +691,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -765,10 +743,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -828,16 +805,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (appProfileId != null) {
-      _queryParams['appProfileId'] = [appProfileId];
-    }
-    if (ignoreWarnings != null) {
-      _queryParams['ignoreWarnings'] = ['${ignoreWarnings}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (appProfileId != null) 'appProfileId': [appProfileId],
+      if (ignoreWarnings != null) 'ignoreWarnings': ['${ignoreWarnings}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -884,13 +856,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ignoreWarnings != null) {
-      _queryParams['ignoreWarnings'] = ['${ignoreWarnings}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ignoreWarnings != null) 'ignoreWarnings': ['${ignoreWarnings}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -929,10 +898,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -985,16 +953,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1048,16 +1011,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ignoreWarnings != null) {
-      _queryParams['ignoreWarnings'] = ['${ignoreWarnings}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ignoreWarnings != null) 'ignoreWarnings': ['${ignoreWarnings}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1116,13 +1074,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clusterId != null) {
-      _queryParams['clusterId'] = [clusterId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clusterId != null) 'clusterId': [clusterId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/clusters';
@@ -1163,10 +1118,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1204,10 +1158,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1250,13 +1203,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/clusters';
@@ -1301,10 +1251,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1370,13 +1319,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (backupId != null) {
-      _queryParams['backupId'] = [backupId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (backupId != null) 'backupId': [backupId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/backups';
@@ -1416,10 +1362,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1457,10 +1402,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1507,10 +1451,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1600,22 +1543,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/backups';
@@ -1672,13 +1606,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1725,10 +1656,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1775,10 +1705,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1835,10 +1764,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1888,10 +1816,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tables';
@@ -1931,10 +1858,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1981,10 +1907,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2035,10 +1960,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2093,13 +2017,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2146,10 +2067,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2215,19 +2135,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tables';
@@ -2277,10 +2190,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2331,10 +2243,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2383,10 +2294,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2433,10 +2343,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2482,10 +2391,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2530,19 +2438,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
diff --git a/generated/googleapis/lib/billingbudgets/v1.dart b/generated/googleapis/lib/billingbudgets/v1.dart
index c204223..1e10cbc 100644
--- a/generated/googleapis/lib/billingbudgets/v1.dart
+++ b/generated/googleapis/lib/billingbudgets/v1.dart
@@ -111,10 +111,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/budgets';
@@ -156,10 +155,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -202,10 +200,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -258,16 +255,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/budgets';
@@ -324,13 +316,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/binaryauthorization/v1.dart b/generated/googleapis/lib/binaryauthorization/v1.dart
index 2acd887..db9207a 100644
--- a/generated/googleapis/lib/binaryauthorization/v1.dart
+++ b/generated/googleapis/lib/binaryauthorization/v1.dart
@@ -99,10 +99,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -150,10 +149,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -207,13 +205,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (attestorId != null) {
-      _queryParams['attestorId'] = [attestorId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (attestorId != null) 'attestorId': [attestorId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/attestors';
@@ -254,10 +249,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -296,10 +290,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -349,15 +342,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -408,16 +397,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/attestors';
@@ -465,10 +449,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -519,10 +502,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -570,10 +552,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -618,10 +599,9 @@
     if (attestor == null) {
       throw core.ArgumentError('Parameter attestor is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$attestor') +
@@ -681,15 +661,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -737,10 +713,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -791,10 +766,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -841,10 +815,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/blogger/v3.dart b/generated/googleapis/lib/blogger/v3.dart
index f832d13..04e6a8e 100644
--- a/generated/googleapis/lib/blogger/v3.dart
+++ b/generated/googleapis/lib/blogger/v3.dart
@@ -111,13 +111,10 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxPosts != null) {
-      _queryParams['maxPosts'] = ['${maxPosts}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxPosts != null) 'maxPosts': ['${maxPosts}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -173,16 +170,11 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxPosts != null) {
-      _queryParams['maxPosts'] = ['${maxPosts}'];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxPosts != null) 'maxPosts': ['${maxPosts}'],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' + commons.Escaper.ecapeVariable('$blogId');
 
@@ -222,17 +214,14 @@
     core.String view,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (url == null) {
       throw core.ArgumentError('Parameter url is required.');
     }
-    _queryParams['url'] = [url];
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'url': [url],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v3/blogs/byurl';
 
@@ -284,22 +273,13 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fetchUserInfo != null) {
-      _queryParams['fetchUserInfo'] = ['${fetchUserInfo}'];
-    }
-    if (role != null) {
-      _queryParams['role'] = role;
-    }
-    if (status != null) {
-      _queryParams['status'] = status;
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fetchUserInfo != null) 'fetchUserInfo': ['${fetchUserInfo}'],
+      if (role != null) 'role': role,
+      if (status != null) 'status': status,
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/users/' + commons.Escaper.ecapeVariable('$userId') + '/blogs';
@@ -353,10 +333,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -407,10 +386,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -470,13 +448,10 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -553,31 +528,16 @@
     if (postId == null) {
       throw core.ArgumentError('Parameter postId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endDate != null) {
-      _queryParams['endDate'] = [endDate];
-    }
-    if (fetchBodies != null) {
-      _queryParams['fetchBodies'] = ['${fetchBodies}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startDate != null) {
-      _queryParams['startDate'] = [startDate];
-    }
-    if (status != null) {
-      _queryParams['status'] = [status];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endDate != null) 'endDate': [endDate],
+      if (fetchBodies != null) 'fetchBodies': ['${fetchBodies}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startDate != null) 'startDate': [startDate],
+      if (status != null) 'status': [status],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -635,28 +595,15 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endDate != null) {
-      _queryParams['endDate'] = [endDate];
-    }
-    if (fetchBodies != null) {
-      _queryParams['fetchBodies'] = ['${fetchBodies}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startDate != null) {
-      _queryParams['startDate'] = [startDate];
-    }
-    if (status != null) {
-      _queryParams['status'] = status;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endDate != null) 'endDate': [endDate],
+      if (fetchBodies != null) 'fetchBodies': ['${fetchBodies}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startDate != null) 'startDate': [startDate],
+      if (status != null) 'status': status,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/blogs/' + commons.Escaper.ecapeVariable('$blogId') + '/comments';
@@ -705,10 +652,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -761,10 +707,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -814,13 +759,10 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (range != null) {
-      _queryParams['range'] = range;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (range != null) 'range': range,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/blogs/' + commons.Escaper.ecapeVariable('$blogId') + '/pageviews';
@@ -866,10 +808,9 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -921,13 +862,10 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -973,13 +911,10 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (isDraft != null) {
-      _queryParams['isDraft'] = ['${isDraft}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (isDraft != null) 'isDraft': ['${isDraft}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/blogs/' + commons.Escaper.ecapeVariable('$blogId') + '/pages';
@@ -1036,25 +971,14 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fetchBodies != null) {
-      _queryParams['fetchBodies'] = ['${fetchBodies}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (status != null) {
-      _queryParams['status'] = status;
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fetchBodies != null) 'fetchBodies': ['${fetchBodies}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (status != null) 'status': status,
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/blogs/' + commons.Escaper.ecapeVariable('$blogId') + '/pages';
@@ -1107,16 +1031,11 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (publish_1 != null) {
-      _queryParams['publish'] = ['${publish_1}'];
-    }
-    if (revert_1 != null) {
-      _queryParams['revert'] = ['${revert_1}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (publish_1 != null) 'publish': ['${publish_1}'],
+      if (revert_1 != null) 'revert': ['${revert_1}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -1161,10 +1080,9 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -1209,10 +1127,9 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -1268,16 +1185,11 @@
     if (pageId == null) {
       throw core.ArgumentError('Parameter pageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (publish_1 != null) {
-      _queryParams['publish'] = ['${publish_1}'];
-    }
-    if (revert_1 != null) {
-      _queryParams['revert'] = ['${revert_1}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (publish_1 != null) 'publish': ['${publish_1}'],
+      if (revert_1 != null) 'revert': ['${revert_1}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -1337,13 +1249,10 @@
     if (postId == null) {
       throw core.ArgumentError('Parameter postId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxComments != null) {
-      _queryParams['maxComments'] = ['${maxComments}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxComments != null) 'maxComments': ['${maxComments}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1426,37 +1335,18 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endDate != null) {
-      _queryParams['endDate'] = [endDate];
-    }
-    if (fetchBodies != null) {
-      _queryParams['fetchBodies'] = ['${fetchBodies}'];
-    }
-    if (labels != null) {
-      _queryParams['labels'] = [labels];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startDate != null) {
-      _queryParams['startDate'] = [startDate];
-    }
-    if (status != null) {
-      _queryParams['status'] = status;
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endDate != null) 'endDate': [endDate],
+      if (fetchBodies != null) 'fetchBodies': ['${fetchBodies}'],
+      if (labels != null) 'labels': [labels],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startDate != null) 'startDate': [startDate],
+      if (status != null) 'status': status,
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1506,10 +1396,9 @@
     if (postId == null) {
       throw core.ArgumentError('Parameter postId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -1570,22 +1459,13 @@
     if (postId == null) {
       throw core.ArgumentError('Parameter postId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fetchBody != null) {
-      _queryParams['fetchBody'] = ['${fetchBody}'];
-    }
-    if (fetchImages != null) {
-      _queryParams['fetchImages'] = ['${fetchImages}'];
-    }
-    if (maxComments != null) {
-      _queryParams['maxComments'] = ['${maxComments}'];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fetchBody != null) 'fetchBody': ['${fetchBody}'],
+      if (fetchImages != null) 'fetchImages': ['${fetchImages}'],
+      if (maxComments != null) 'maxComments': ['${maxComments}'],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -1637,20 +1517,15 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    _queryParams['path'] = [path];
-    if (maxComments != null) {
-      _queryParams['maxComments'] = ['${maxComments}'];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'path': [path],
+      if (maxComments != null) 'maxComments': ['${maxComments}'],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -1701,19 +1576,12 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fetchBody != null) {
-      _queryParams['fetchBody'] = ['${fetchBody}'];
-    }
-    if (fetchImages != null) {
-      _queryParams['fetchImages'] = ['${fetchImages}'];
-    }
-    if (isDraft != null) {
-      _queryParams['isDraft'] = ['${isDraft}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fetchBody != null) 'fetchBody': ['${fetchBody}'],
+      if (fetchImages != null) 'fetchImages': ['${fetchImages}'],
+      if (isDraft != null) 'isDraft': ['${isDraft}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/blogs/' + commons.Escaper.ecapeVariable('$blogId') + '/posts';
@@ -1789,40 +1657,19 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endDate != null) {
-      _queryParams['endDate'] = [endDate];
-    }
-    if (fetchBodies != null) {
-      _queryParams['fetchBodies'] = ['${fetchBodies}'];
-    }
-    if (fetchImages != null) {
-      _queryParams['fetchImages'] = ['${fetchImages}'];
-    }
-    if (labels != null) {
-      _queryParams['labels'] = [labels];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startDate != null) {
-      _queryParams['startDate'] = [startDate];
-    }
-    if (status != null) {
-      _queryParams['status'] = status;
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endDate != null) 'endDate': [endDate],
+      if (fetchBodies != null) 'fetchBodies': ['${fetchBodies}'],
+      if (fetchImages != null) 'fetchImages': ['${fetchImages}'],
+      if (labels != null) 'labels': [labels],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startDate != null) 'startDate': [startDate],
+      if (status != null) 'status': status,
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/blogs/' + commons.Escaper.ecapeVariable('$blogId') + '/posts';
@@ -1884,25 +1731,14 @@
     if (postId == null) {
       throw core.ArgumentError('Parameter postId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fetchBody != null) {
-      _queryParams['fetchBody'] = ['${fetchBody}'];
-    }
-    if (fetchImages != null) {
-      _queryParams['fetchImages'] = ['${fetchImages}'];
-    }
-    if (maxComments != null) {
-      _queryParams['maxComments'] = ['${maxComments}'];
-    }
-    if (publish_1 != null) {
-      _queryParams['publish'] = ['${publish_1}'];
-    }
-    if (revert_1 != null) {
-      _queryParams['revert'] = ['${revert_1}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fetchBody != null) 'fetchBody': ['${fetchBody}'],
+      if (fetchImages != null) 'fetchImages': ['${fetchImages}'],
+      if (maxComments != null) 'maxComments': ['${maxComments}'],
+      if (publish_1 != null) 'publish': ['${publish_1}'],
+      if (revert_1 != null) 'revert': ['${revert_1}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -1950,13 +1786,10 @@
     if (postId == null) {
       throw core.ArgumentError('Parameter postId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (publishDate != null) {
-      _queryParams['publishDate'] = [publishDate];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (publishDate != null) 'publishDate': [publishDate],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -2001,10 +1834,9 @@
     if (postId == null) {
       throw core.ArgumentError('Parameter postId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -2056,20 +1888,15 @@
     if (blogId == null) {
       throw core.ArgumentError('Parameter blogId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (q == null) {
       throw core.ArgumentError('Parameter q is required.');
     }
-    _queryParams['q'] = [q];
-    if (fetchBodies != null) {
-      _queryParams['fetchBodies'] = ['${fetchBodies}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'q': [q],
+      if (fetchBodies != null) 'fetchBodies': ['${fetchBodies}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -2132,25 +1959,14 @@
     if (postId == null) {
       throw core.ArgumentError('Parameter postId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fetchBody != null) {
-      _queryParams['fetchBody'] = ['${fetchBody}'];
-    }
-    if (fetchImages != null) {
-      _queryParams['fetchImages'] = ['${fetchImages}'];
-    }
-    if (maxComments != null) {
-      _queryParams['maxComments'] = ['${maxComments}'];
-    }
-    if (publish_1 != null) {
-      _queryParams['publish'] = ['${publish_1}'];
-    }
-    if (revert_1 != null) {
-      _queryParams['revert'] = ['${revert_1}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fetchBody != null) 'fetchBody': ['${fetchBody}'],
+      if (fetchImages != null) 'fetchImages': ['${fetchImages}'],
+      if (maxComments != null) 'maxComments': ['${maxComments}'],
+      if (publish_1 != null) 'publish': ['${publish_1}'],
+      if (revert_1 != null) 'revert': ['${revert_1}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/blogs/' +
         commons.Escaper.ecapeVariable('$blogId') +
@@ -2195,10 +2011,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/users/' + commons.Escaper.ecapeVariable('$userId');
 
diff --git a/generated/googleapis/lib/books/v1.dart b/generated/googleapis/lib/books/v1.dart
index 1608172..5509dcf 100644
--- a/generated/googleapis/lib/books/v1.dart
+++ b/generated/googleapis/lib/books/v1.dart
@@ -131,13 +131,10 @@
     if (shelf == null) {
       throw core.ArgumentError('Parameter shelf is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -178,13 +175,10 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -247,22 +241,13 @@
     if (shelf == null) {
       throw core.ArgumentError('Parameter shelf is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (showPreorders != null) {
-      _queryParams['showPreorders'] = ['${showPreorders}'];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (showPreorders != null) 'showPreorders': ['${showPreorders}'],
+      if (source != null) 'source': [source],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -316,22 +301,13 @@
     core.String uploadClientToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (driveDocumentId != null) {
-      _queryParams['drive_document_id'] = [driveDocumentId];
-    }
-    if (mimeType != null) {
-      _queryParams['mime_type'] = [mimeType];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (uploadClientToken != null) {
-      _queryParams['upload_client_token'] = [uploadClientToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (driveDocumentId != null) 'drive_document_id': [driveDocumentId],
+      if (mimeType != null) 'mime_type': [mimeType],
+      if (name != null) 'name': [name],
+      if (uploadClientToken != null) 'upload_client_token': [uploadClientToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/cloudloading/addBook';
 
@@ -364,14 +340,13 @@
     core.String volumeId, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    _queryParams['volumeId'] = [volumeId];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'volumeId': [volumeId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/cloudloading/deleteBook';
 
@@ -405,10 +380,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/cloudloading/updateBook';
 
@@ -448,14 +422,13 @@
     core.String cpksver, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (cpksver == null) {
       throw core.ArgumentError('Parameter cpksver is required.');
     }
-    _queryParams['cpksver'] = [cpksver];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'cpksver': [cpksver],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/dictionary/listOfflineMetadata';
 
@@ -493,13 +466,10 @@
     core.String source,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/familysharing/getFamilyInfo';
 
@@ -540,19 +510,12 @@
     core.String volumeId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (docId != null) {
-      _queryParams['docId'] = [docId];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (volumeId != null) {
-      _queryParams['volumeId'] = [volumeId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (docId != null) 'docId': [docId],
+      if (source != null) 'source': [source],
+      if (volumeId != null) 'volumeId': [volumeId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/familysharing/share';
 
@@ -593,19 +556,12 @@
     core.String volumeId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (docId != null) {
-      _queryParams['docId'] = [docId];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (volumeId != null) {
-      _queryParams['volumeId'] = [volumeId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (docId != null) 'docId': [docId],
+      if (source != null) 'source': [source],
+      if (volumeId != null) 'volumeId': [volumeId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/familysharing/unshare';
 
@@ -663,16 +619,11 @@
     if (summaryId == null) {
       throw core.ArgumentError('Parameter summaryId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (contentVersion != null) {
-      _queryParams['contentVersion'] = [contentVersion];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (contentVersion != null) 'contentVersion': [contentVersion],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/volumes/' +
         commons.Escaper.ecapeVariable('$volumeId') +
@@ -724,22 +675,13 @@
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (contentVersion != null) {
-      _queryParams['contentVersion'] = [contentVersion];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (contentVersion != null) 'contentVersion': [contentVersion],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/volumes/' +
         commons.Escaper.ecapeVariable('$volumeId') +
@@ -822,32 +764,20 @@
     if (annotationDataId == null) {
       throw core.ArgumentError('Parameter annotationDataId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (contentVersion == null) {
       throw core.ArgumentError('Parameter contentVersion is required.');
     }
-    _queryParams['contentVersion'] = [contentVersion];
-    if (allowWebDefinitions != null) {
-      _queryParams['allowWebDefinitions'] = ['${allowWebDefinitions}'];
-    }
-    if (h != null) {
-      _queryParams['h'] = ['${h}'];
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (scale != null) {
-      _queryParams['scale'] = ['${scale}'];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (w != null) {
-      _queryParams['w'] = ['${w}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'contentVersion': [contentVersion],
+      if (allowWebDefinitions != null)
+        'allowWebDefinitions': ['${allowWebDefinitions}'],
+      if (h != null) 'h': ['${h}'],
+      if (locale != null) 'locale': [locale],
+      if (scale != null) 'scale': ['${scale}'],
+      if (source != null) 'source': [source],
+      if (w != null) 'w': ['${w}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/volumes/' +
         commons.Escaper.ecapeVariable('$volumeId') +
@@ -934,44 +864,23 @@
     if (layerId == null) {
       throw core.ArgumentError('Parameter layerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (contentVersion == null) {
       throw core.ArgumentError('Parameter contentVersion is required.');
     }
-    _queryParams['contentVersion'] = [contentVersion];
-    if (annotationDataId != null) {
-      _queryParams['annotationDataId'] = annotationDataId;
-    }
-    if (h != null) {
-      _queryParams['h'] = ['${h}'];
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (scale != null) {
-      _queryParams['scale'] = ['${scale}'];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (updatedMax != null) {
-      _queryParams['updatedMax'] = [updatedMax];
-    }
-    if (updatedMin != null) {
-      _queryParams['updatedMin'] = [updatedMin];
-    }
-    if (w != null) {
-      _queryParams['w'] = ['${w}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'contentVersion': [contentVersion],
+      if (annotationDataId != null) 'annotationDataId': annotationDataId,
+      if (h != null) 'h': ['${h}'],
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (scale != null) 'scale': ['${scale}'],
+      if (source != null) 'source': [source],
+      if (updatedMax != null) 'updatedMax': [updatedMax],
+      if (updatedMin != null) 'updatedMin': [updatedMin],
+      if (w != null) 'w': ['${w}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/volumes/' +
         commons.Escaper.ecapeVariable('$volumeId') +
@@ -1037,16 +946,11 @@
     if (annotationId == null) {
       throw core.ArgumentError('Parameter annotationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/volumes/' +
         commons.Escaper.ecapeVariable('$volumeId') +
@@ -1138,50 +1042,26 @@
     if (layerId == null) {
       throw core.ArgumentError('Parameter layerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (contentVersion == null) {
       throw core.ArgumentError('Parameter contentVersion is required.');
     }
-    _queryParams['contentVersion'] = [contentVersion];
-    if (endOffset != null) {
-      _queryParams['endOffset'] = [endOffset];
-    }
-    if (endPosition != null) {
-      _queryParams['endPosition'] = [endPosition];
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (startOffset != null) {
-      _queryParams['startOffset'] = [startOffset];
-    }
-    if (startPosition != null) {
-      _queryParams['startPosition'] = [startPosition];
-    }
-    if (updatedMax != null) {
-      _queryParams['updatedMax'] = [updatedMax];
-    }
-    if (updatedMin != null) {
-      _queryParams['updatedMin'] = [updatedMin];
-    }
-    if (volumeAnnotationsVersion != null) {
-      _queryParams['volumeAnnotationsVersion'] = [volumeAnnotationsVersion];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'contentVersion': [contentVersion],
+      if (endOffset != null) 'endOffset': [endOffset],
+      if (endPosition != null) 'endPosition': [endPosition],
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (source != null) 'source': [source],
+      if (startOffset != null) 'startOffset': [startOffset],
+      if (startPosition != null) 'startPosition': [startPosition],
+      if (updatedMax != null) 'updatedMax': [updatedMax],
+      if (updatedMin != null) 'updatedMin': [updatedMin],
+      if (volumeAnnotationsVersion != null)
+        'volumeAnnotationsVersion': [volumeAnnotationsVersion],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/volumes/' +
         commons.Escaper.ecapeVariable('$volumeId') +
@@ -1224,13 +1104,10 @@
     core.String country,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (country != null) {
-      _queryParams['country'] = [country];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (country != null) 'country': [country],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/myconfig/getUserSettings';
 
@@ -1273,24 +1150,19 @@
     core.String source,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (cpksver == null) {
       throw core.ArgumentError('Parameter cpksver is required.');
     }
-    _queryParams['cpksver'] = [cpksver];
     if (volumeIds == null || volumeIds.isEmpty) {
       throw core.ArgumentError('Parameter volumeIds is required.');
     }
-    _queryParams['volumeIds'] = volumeIds;
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'cpksver': [cpksver],
+      'volumeIds': volumeIds,
+      if (locale != null) 'locale': [locale],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/myconfig/releaseDownloadAccess';
 
@@ -1345,32 +1217,27 @@
     core.String locale,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (cpksver == null) {
       throw core.ArgumentError('Parameter cpksver is required.');
     }
-    _queryParams['cpksver'] = [cpksver];
     if (nonce == null) {
       throw core.ArgumentError('Parameter nonce is required.');
     }
-    _queryParams['nonce'] = [nonce];
     if (source == null) {
       throw core.ArgumentError('Parameter source is required.');
     }
-    _queryParams['source'] = [source];
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    _queryParams['volumeId'] = [volumeId];
-    if (licenseTypes != null) {
-      _queryParams['licenseTypes'] = [licenseTypes];
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'cpksver': [cpksver],
+      'nonce': [nonce],
+      'source': [source],
+      'volumeId': [volumeId],
+      if (licenseTypes != null) 'licenseTypes': [licenseTypes],
+      if (locale != null) 'locale': [locale],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/myconfig/requestAccess';
 
@@ -1428,37 +1295,27 @@
     core.List<core.String> volumeIds,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (cpksver == null) {
       throw core.ArgumentError('Parameter cpksver is required.');
     }
-    _queryParams['cpksver'] = [cpksver];
     if (nonce == null) {
       throw core.ArgumentError('Parameter nonce is required.');
     }
-    _queryParams['nonce'] = [nonce];
     if (source == null) {
       throw core.ArgumentError('Parameter source is required.');
     }
-    _queryParams['source'] = [source];
-    if (features != null) {
-      _queryParams['features'] = features;
-    }
-    if (includeNonComicsSeries != null) {
-      _queryParams['includeNonComicsSeries'] = ['${includeNonComicsSeries}'];
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (showPreorders != null) {
-      _queryParams['showPreorders'] = ['${showPreorders}'];
-    }
-    if (volumeIds != null) {
-      _queryParams['volumeIds'] = volumeIds;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'cpksver': [cpksver],
+      'nonce': [nonce],
+      'source': [source],
+      if (features != null) 'features': features,
+      if (includeNonComicsSeries != null)
+        'includeNonComicsSeries': ['${includeNonComicsSeries}'],
+      if (locale != null) 'locale': [locale],
+      if (showPreorders != null) 'showPreorders': ['${showPreorders}'],
+      if (volumeIds != null) 'volumeIds': volumeIds,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/myconfig/syncVolumeLicenses';
 
@@ -1496,10 +1353,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/myconfig/updateUserSettings';
 
@@ -1559,13 +1415,10 @@
     if (annotationId == null) {
       throw core.ArgumentError('Parameter annotationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/annotations/' +
         commons.Escaper.ecapeVariable('$annotationId');
@@ -1613,24 +1466,14 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (annotationId != null) {
-      _queryParams['annotationId'] = [annotationId];
-    }
-    if (country != null) {
-      _queryParams['country'] = [country];
-    }
-    if (showOnlySummaryInResponse != null) {
-      _queryParams['showOnlySummaryInResponse'] = [
-        '${showOnlySummaryInResponse}'
-      ];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (annotationId != null) 'annotationId': [annotationId],
+      if (country != null) 'country': [country],
+      if (showOnlySummaryInResponse != null)
+        'showOnlySummaryInResponse': ['${showOnlySummaryInResponse}'],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/mylibrary/annotations';
 
@@ -1695,40 +1538,19 @@
     core.String volumeId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (contentVersion != null) {
-      _queryParams['contentVersion'] = [contentVersion];
-    }
-    if (layerId != null) {
-      _queryParams['layerId'] = [layerId];
-    }
-    if (layerIds != null) {
-      _queryParams['layerIds'] = layerIds;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (updatedMax != null) {
-      _queryParams['updatedMax'] = [updatedMax];
-    }
-    if (updatedMin != null) {
-      _queryParams['updatedMin'] = [updatedMin];
-    }
-    if (volumeId != null) {
-      _queryParams['volumeId'] = [volumeId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (contentVersion != null) 'contentVersion': [contentVersion],
+      if (layerId != null) 'layerId': [layerId],
+      if (layerIds != null) 'layerIds': layerIds,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (source != null) 'source': [source],
+      if (updatedMax != null) 'updatedMax': [updatedMax],
+      if (updatedMin != null) 'updatedMin': [updatedMin],
+      if (volumeId != null) 'volumeId': [volumeId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/mylibrary/annotations';
 
@@ -1764,18 +1586,17 @@
     core.String volumeId, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (layerIds == null || layerIds.isEmpty) {
       throw core.ArgumentError('Parameter layerIds is required.');
     }
-    _queryParams['layerIds'] = layerIds;
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    _queryParams['volumeId'] = [volumeId];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'layerIds': layerIds,
+      'volumeId': [volumeId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/mylibrary/annotations/summary';
 
@@ -1819,13 +1640,10 @@
     if (annotationId == null) {
       throw core.ArgumentError('Parameter annotationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/annotations/' +
         commons.Escaper.ecapeVariable('$annotationId');
@@ -1887,20 +1705,15 @@
     if (shelf == null) {
       throw core.ArgumentError('Parameter shelf is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    _queryParams['volumeId'] = [volumeId];
-    if (reason != null) {
-      _queryParams['reason'] = [reason];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'volumeId': [volumeId],
+      if (reason != null) 'reason': [reason],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/bookshelves/' +
         commons.Escaper.ecapeVariable('$shelf') +
@@ -1940,13 +1753,10 @@
     if (shelf == null) {
       throw core.ArgumentError('Parameter shelf is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/bookshelves/' +
         commons.Escaper.ecapeVariable('$shelf') +
@@ -1987,13 +1797,10 @@
     if (shelf == null) {
       throw core.ArgumentError('Parameter shelf is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/bookshelves/' +
         commons.Escaper.ecapeVariable('$shelf');
@@ -2026,13 +1833,10 @@
     core.String source,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/mylibrary/bookshelves';
 
@@ -2079,21 +1883,18 @@
     if (shelf == null) {
       throw core.ArgumentError('Parameter shelf is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    _queryParams['volumeId'] = [volumeId];
     if (volumePosition == null) {
       throw core.ArgumentError('Parameter volumePosition is required.');
     }
-    _queryParams['volumePosition'] = ['${volumePosition}'];
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'volumeId': [volumeId],
+      'volumePosition': ['${volumePosition}'],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/bookshelves/' +
         commons.Escaper.ecapeVariable('$shelf') +
@@ -2142,20 +1943,15 @@
     if (shelf == null) {
       throw core.ArgumentError('Parameter shelf is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    _queryParams['volumeId'] = [volumeId];
-    if (reason != null) {
-      _queryParams['reason'] = [reason];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'volumeId': [volumeId],
+      if (reason != null) 'reason': [reason],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/bookshelves/' +
         commons.Escaper.ecapeVariable('$shelf') +
@@ -2225,31 +2021,16 @@
     if (shelf == null) {
       throw core.ArgumentError('Parameter shelf is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (country != null) {
-      _queryParams['country'] = [country];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (showPreorders != null) {
-      _queryParams['showPreorders'] = ['${showPreorders}'];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (country != null) 'country': [country],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (projection != null) 'projection': [projection],
+      if (q != null) 'q': [q],
+      if (showPreorders != null) 'showPreorders': ['${showPreorders}'],
+      if (source != null) 'source': [source],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/bookshelves/' +
         commons.Escaper.ecapeVariable('$shelf') +
@@ -2300,16 +2081,11 @@
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (contentVersion != null) {
-      _queryParams['contentVersion'] = [contentVersion];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (contentVersion != null) 'contentVersion': [contentVersion],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/readingpositions/' +
         commons.Escaper.ecapeVariable('$volumeId');
@@ -2374,30 +2150,21 @@
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (position == null) {
       throw core.ArgumentError('Parameter position is required.');
     }
-    _queryParams['position'] = [position];
     if (timestamp == null) {
       throw core.ArgumentError('Parameter timestamp is required.');
     }
-    _queryParams['timestamp'] = [timestamp];
-    if (action != null) {
-      _queryParams['action'] = [action];
-    }
-    if (contentVersion != null) {
-      _queryParams['contentVersion'] = [contentVersion];
-    }
-    if (deviceCookie != null) {
-      _queryParams['deviceCookie'] = [deviceCookie];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'position': [position],
+      'timestamp': [timestamp],
+      if (action != null) 'action': [action],
+      if (contentVersion != null) 'contentVersion': [contentVersion],
+      if (deviceCookie != null) 'deviceCookie': [deviceCookie],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/mylibrary/readingpositions/' +
         commons.Escaper.ecapeVariable('$volumeId') +
@@ -2444,20 +2211,15 @@
     core.String source,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (notificationId == null) {
       throw core.ArgumentError('Parameter notificationId is required.');
     }
-    _queryParams['notification_id'] = [notificationId];
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'notification_id': [notificationId],
+      if (locale != null) 'locale': [locale],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/notification/get';
 
@@ -2497,13 +2259,10 @@
     core.String locale,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/onboarding/listCategories';
 
@@ -2554,25 +2313,15 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (categoryId != null) {
-      _queryParams['categoryId'] = categoryId;
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxAllowedMaturityRating != null) {
-      _queryParams['maxAllowedMaturityRating'] = [maxAllowedMaturityRating];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (categoryId != null) 'categoryId': categoryId,
+      if (locale != null) 'locale': [locale],
+      if (maxAllowedMaturityRating != null)
+        'maxAllowedMaturityRating': [maxAllowedMaturityRating],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/onboarding/listCategoryVolumes';
 
@@ -2623,19 +2372,13 @@
     core.String source,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxAllowedMaturityRating != null) {
-      _queryParams['maxAllowedMaturityRating'] = [maxAllowedMaturityRating];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if (maxAllowedMaturityRating != null)
+        'maxAllowedMaturityRating': [maxAllowedMaturityRating],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/personalizedstream/get';
 
@@ -2695,34 +2438,17 @@
     core.String volumeId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (androidId != null) {
-      _queryParams['androidId'] = [androidId];
-    }
-    if (device != null) {
-      _queryParams['device'] = [device];
-    }
-    if (manufacturer != null) {
-      _queryParams['manufacturer'] = [manufacturer];
-    }
-    if (model != null) {
-      _queryParams['model'] = [model];
-    }
-    if (offerId != null) {
-      _queryParams['offerId'] = [offerId];
-    }
-    if (product != null) {
-      _queryParams['product'] = [product];
-    }
-    if (serial != null) {
-      _queryParams['serial'] = [serial];
-    }
-    if (volumeId != null) {
-      _queryParams['volumeId'] = [volumeId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (androidId != null) 'androidId': [androidId],
+      if (device != null) 'device': [device],
+      if (manufacturer != null) 'manufacturer': [manufacturer],
+      if (model != null) 'model': [model],
+      if (offerId != null) 'offerId': [offerId],
+      if (product != null) 'product': [product],
+      if (serial != null) 'serial': [serial],
+      if (volumeId != null) 'volumeId': [volumeId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/promooffer/accept';
 
@@ -2772,31 +2498,16 @@
     core.String serial,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (androidId != null) {
-      _queryParams['androidId'] = [androidId];
-    }
-    if (device != null) {
-      _queryParams['device'] = [device];
-    }
-    if (manufacturer != null) {
-      _queryParams['manufacturer'] = [manufacturer];
-    }
-    if (model != null) {
-      _queryParams['model'] = [model];
-    }
-    if (offerId != null) {
-      _queryParams['offerId'] = [offerId];
-    }
-    if (product != null) {
-      _queryParams['product'] = [product];
-    }
-    if (serial != null) {
-      _queryParams['serial'] = [serial];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (androidId != null) 'androidId': [androidId],
+      if (device != null) 'device': [device],
+      if (manufacturer != null) 'manufacturer': [manufacturer],
+      if (model != null) 'model': [model],
+      if (offerId != null) 'offerId': [offerId],
+      if (product != null) 'product': [product],
+      if (serial != null) 'serial': [serial],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/promooffer/dismiss';
 
@@ -2843,28 +2554,15 @@
     core.String serial,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (androidId != null) {
-      _queryParams['androidId'] = [androidId];
-    }
-    if (device != null) {
-      _queryParams['device'] = [device];
-    }
-    if (manufacturer != null) {
-      _queryParams['manufacturer'] = [manufacturer];
-    }
-    if (model != null) {
-      _queryParams['model'] = [model];
-    }
-    if (product != null) {
-      _queryParams['product'] = [product];
-    }
-    if (serial != null) {
-      _queryParams['serial'] = [serial];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (androidId != null) 'androidId': [androidId],
+      if (device != null) 'device': [device],
+      if (manufacturer != null) 'manufacturer': [manufacturer],
+      if (model != null) 'model': [model],
+      if (product != null) 'product': [product],
+      if (serial != null) 'serial': [serial],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/promooffer/get';
 
@@ -2905,14 +2603,13 @@
     core.List<core.String> seriesId, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (seriesId == null || seriesId.isEmpty) {
       throw core.ArgumentError('Parameter seriesId is required.');
     }
-    _queryParams['series_id'] = seriesId;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'series_id': seriesId,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/series/get';
 
@@ -2957,20 +2654,15 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (seriesId == null) {
       throw core.ArgumentError('Parameter seriesId is required.');
     }
-    _queryParams['series_id'] = [seriesId];
-    if (pageSize != null) {
-      _queryParams['page_size'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['page_token'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'series_id': [seriesId],
+      if (pageSize != null) 'page_size': ['${pageSize}'],
+      if (pageToken != null) 'page_token': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/series/membership/get';
 
@@ -3043,30 +2735,17 @@
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (country != null) {
-      _queryParams['country'] = [country];
-    }
-    if (includeNonComicsSeries != null) {
-      _queryParams['includeNonComicsSeries'] = ['${includeNonComicsSeries}'];
-    }
-    if (partner != null) {
-      _queryParams['partner'] = [partner];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (userLibraryConsistentRead != null) {
-      _queryParams['user_library_consistent_read'] = [
-        '${userLibraryConsistentRead}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (country != null) 'country': [country],
+      if (includeNonComicsSeries != null)
+        'includeNonComicsSeries': ['${includeNonComicsSeries}'],
+      if (partner != null) 'partner': [partner],
+      if (projection != null) 'projection': [projection],
+      if (source != null) 'source': [source],
+      if (userLibraryConsistentRead != null)
+        'user_library_consistent_read': ['${userLibraryConsistentRead}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'books/v1/volumes/' + commons.Escaper.ecapeVariable('$volumeId');
@@ -3173,53 +2852,27 @@
     core.int startIndex,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (q == null) {
       throw core.ArgumentError('Parameter q is required.');
     }
-    _queryParams['q'] = [q];
-    if (download != null) {
-      _queryParams['download'] = [download];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (langRestrict != null) {
-      _queryParams['langRestrict'] = [langRestrict];
-    }
-    if (libraryRestrict != null) {
-      _queryParams['libraryRestrict'] = [libraryRestrict];
-    }
-    if (maxAllowedMaturityRating != null) {
-      _queryParams['maxAllowedMaturityRating'] = [maxAllowedMaturityRating];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (partner != null) {
-      _queryParams['partner'] = [partner];
-    }
-    if (printType != null) {
-      _queryParams['printType'] = [printType];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (showPreorders != null) {
-      _queryParams['showPreorders'] = ['${showPreorders}'];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'q': [q],
+      if (download != null) 'download': [download],
+      if (filter != null) 'filter': [filter],
+      if (langRestrict != null) 'langRestrict': [langRestrict],
+      if (libraryRestrict != null) 'libraryRestrict': [libraryRestrict],
+      if (maxAllowedMaturityRating != null)
+        'maxAllowedMaturityRating': [maxAllowedMaturityRating],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (partner != null) 'partner': [partner],
+      if (printType != null) 'printType': [printType],
+      if (projection != null) 'projection': [projection],
+      if (showPreorders != null) 'showPreorders': ['${showPreorders}'],
+      if (source != null) 'source': [source],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/volumes';
 
@@ -3284,22 +2937,14 @@
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (association != null) {
-      _queryParams['association'] = [association];
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxAllowedMaturityRating != null) {
-      _queryParams['maxAllowedMaturityRating'] = [maxAllowedMaturityRating];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (association != null) 'association': [association],
+      if (locale != null) 'locale': [locale],
+      if (maxAllowedMaturityRating != null)
+        'maxAllowedMaturityRating': [maxAllowedMaturityRating],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'books/v1/volumes/' +
         commons.Escaper.ecapeVariable('$volumeId') +
@@ -3361,31 +3006,16 @@
     core.int startIndex,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acquireMethod != null) {
-      _queryParams['acquireMethod'] = acquireMethod;
-    }
-    if (country != null) {
-      _queryParams['country'] = [country];
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (processingState != null) {
-      _queryParams['processingState'] = processingState;
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acquireMethod != null) 'acquireMethod': acquireMethod,
+      if (country != null) 'country': [country],
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (processingState != null) 'processingState': processingState,
+      if (source != null) 'source': [source],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/volumes/mybooks';
 
@@ -3436,19 +3066,13 @@
     core.String source,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxAllowedMaturityRating != null) {
-      _queryParams['maxAllowedMaturityRating'] = [maxAllowedMaturityRating];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if (maxAllowedMaturityRating != null)
+        'maxAllowedMaturityRating': [maxAllowedMaturityRating],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/volumes/recommended';
 
@@ -3494,24 +3118,19 @@
     core.String source,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (rating == null) {
       throw core.ArgumentError('Parameter rating is required.');
     }
-    _queryParams['rating'] = [rating];
     if (volumeId == null) {
       throw core.ArgumentError('Parameter volumeId is required.');
     }
-    _queryParams['volumeId'] = [volumeId];
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'rating': [rating],
+      'volumeId': [volumeId],
+      if (locale != null) 'locale': [locale],
+      if (source != null) 'source': [source],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/volumes/recommended/rate';
 
@@ -3570,28 +3189,15 @@
     core.List<core.String> volumeId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (processingState != null) {
-      _queryParams['processingState'] = processingState;
-    }
-    if (source != null) {
-      _queryParams['source'] = [source];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if (volumeId != null) {
-      _queryParams['volumeId'] = volumeId;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (processingState != null) 'processingState': processingState,
+      if (source != null) 'source': [source],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if (volumeId != null) 'volumeId': volumeId,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'books/v1/volumes/useruploaded';
 
diff --git a/generated/googleapis/lib/calendar/v3.dart b/generated/googleapis/lib/calendar/v3.dart
index ab8bf78..f894030 100644
--- a/generated/googleapis/lib/calendar/v3.dart
+++ b/generated/googleapis/lib/calendar/v3.dart
@@ -119,10 +119,9 @@
     if (ruleId == null) {
       throw core.ArgumentError('Parameter ruleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -168,10 +167,9 @@
     if (ruleId == null) {
       throw core.ArgumentError('Parameter ruleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -220,13 +218,11 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sendNotifications != null) {
-      _queryParams['sendNotifications'] = ['${sendNotifications}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sendNotifications != null)
+        'sendNotifications': ['${sendNotifications}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'calendars/' + commons.Escaper.ecapeVariable('$calendarId') + '/acl';
@@ -290,22 +286,13 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'calendars/' + commons.Escaper.ecapeVariable('$calendarId') + '/acl';
@@ -361,13 +348,11 @@
     if (ruleId == null) {
       throw core.ArgumentError('Parameter ruleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sendNotifications != null) {
-      _queryParams['sendNotifications'] = ['${sendNotifications}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sendNotifications != null)
+        'sendNotifications': ['${sendNotifications}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -424,13 +409,11 @@
     if (ruleId == null) {
       throw core.ArgumentError('Parameter ruleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sendNotifications != null) {
-      _queryParams['sendNotifications'] = ['${sendNotifications}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sendNotifications != null)
+        'sendNotifications': ['${sendNotifications}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -501,22 +484,13 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -560,10 +534,9 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'users/me/calendarList/' + commons.Escaper.ecapeVariable('$calendarId');
@@ -601,10 +574,9 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'users/me/calendarList/' + commons.Escaper.ecapeVariable('$calendarId');
@@ -646,13 +618,10 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (colorRgbFormat != null) {
-      _queryParams['colorRgbFormat'] = ['${colorRgbFormat}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (colorRgbFormat != null) 'colorRgbFormat': ['${colorRgbFormat}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'users/me/calendarList';
 
@@ -724,28 +693,15 @@
     core.String syncToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (minAccessRole != null) {
-      _queryParams['minAccessRole'] = [minAccessRole];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (showHidden != null) {
-      _queryParams['showHidden'] = ['${showHidden}'];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (minAccessRole != null) 'minAccessRole': [minAccessRole],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (showHidden != null) 'showHidden': ['${showHidden}'],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'users/me/calendarList';
 
@@ -796,13 +752,10 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (colorRgbFormat != null) {
-      _queryParams['colorRgbFormat'] = ['${colorRgbFormat}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (colorRgbFormat != null) 'colorRgbFormat': ['${colorRgbFormat}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'users/me/calendarList/' + commons.Escaper.ecapeVariable('$calendarId');
@@ -853,13 +806,10 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (colorRgbFormat != null) {
-      _queryParams['colorRgbFormat'] = ['${colorRgbFormat}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (colorRgbFormat != null) 'colorRgbFormat': ['${colorRgbFormat}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'users/me/calendarList/' + commons.Escaper.ecapeVariable('$calendarId');
@@ -937,28 +887,15 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (minAccessRole != null) {
-      _queryParams['minAccessRole'] = [minAccessRole];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (showHidden != null) {
-      _queryParams['showHidden'] = ['${showHidden}'];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (minAccessRole != null) 'minAccessRole': [minAccessRole],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (showHidden != null) 'showHidden': ['${showHidden}'],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'users/me/calendarList/watch';
 
@@ -1003,10 +940,9 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'calendars/' + commons.Escaper.ecapeVariable('$calendarId') + '/clear';
@@ -1044,10 +980,9 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' + commons.Escaper.ecapeVariable('$calendarId');
 
@@ -1084,10 +1019,9 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' + commons.Escaper.ecapeVariable('$calendarId');
 
@@ -1121,10 +1055,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'calendars';
 
@@ -1169,10 +1102,9 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' + commons.Escaper.ecapeVariable('$calendarId');
 
@@ -1215,10 +1147,9 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' + commons.Escaper.ecapeVariable('$calendarId');
 
@@ -1257,10 +1188,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'channels/stop';
 
@@ -1296,10 +1226,9 @@
   async.Future<Colors> get({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'colors';
 
@@ -1364,16 +1293,12 @@
     if (eventId == null) {
       throw core.ArgumentError('Parameter eventId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sendNotifications != null) {
-      _queryParams['sendNotifications'] = ['${sendNotifications}'];
-    }
-    if (sendUpdates != null) {
-      _queryParams['sendUpdates'] = [sendUpdates];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sendNotifications != null)
+        'sendNotifications': ['${sendNotifications}'],
+      if (sendUpdates != null) 'sendUpdates': [sendUpdates],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -1434,19 +1359,13 @@
     if (eventId == null) {
       throw core.ArgumentError('Parameter eventId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (alwaysIncludeEmail != null) {
-      _queryParams['alwaysIncludeEmail'] = ['${alwaysIncludeEmail}'];
-    }
-    if (maxAttendees != null) {
-      _queryParams['maxAttendees'] = ['${maxAttendees}'];
-    }
-    if (timeZone != null) {
-      _queryParams['timeZone'] = [timeZone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (alwaysIncludeEmail != null)
+        'alwaysIncludeEmail': ['${alwaysIncludeEmail}'],
+      if (maxAttendees != null) 'maxAttendees': ['${maxAttendees}'],
+      if (timeZone != null) 'timeZone': [timeZone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -1506,16 +1425,13 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (conferenceDataVersion != null) {
-      _queryParams['conferenceDataVersion'] = ['${conferenceDataVersion}'];
-    }
-    if (supportsAttachments != null) {
-      _queryParams['supportsAttachments'] = ['${supportsAttachments}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (conferenceDataVersion != null)
+        'conferenceDataVersion': ['${conferenceDataVersion}'],
+      if (supportsAttachments != null)
+        'supportsAttachments': ['${supportsAttachments}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -1596,25 +1512,17 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (conferenceDataVersion != null) {
-      _queryParams['conferenceDataVersion'] = ['${conferenceDataVersion}'];
-    }
-    if (maxAttendees != null) {
-      _queryParams['maxAttendees'] = ['${maxAttendees}'];
-    }
-    if (sendNotifications != null) {
-      _queryParams['sendNotifications'] = ['${sendNotifications}'];
-    }
-    if (sendUpdates != null) {
-      _queryParams['sendUpdates'] = [sendUpdates];
-    }
-    if (supportsAttachments != null) {
-      _queryParams['supportsAttachments'] = ['${supportsAttachments}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (conferenceDataVersion != null)
+        'conferenceDataVersion': ['${conferenceDataVersion}'],
+      if (maxAttendees != null) 'maxAttendees': ['${maxAttendees}'],
+      if (sendNotifications != null)
+        'sendNotifications': ['${sendNotifications}'],
+      if (sendUpdates != null) 'sendUpdates': [sendUpdates],
+      if (supportsAttachments != null)
+        'supportsAttachments': ['${supportsAttachments}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'calendars/' + commons.Escaper.ecapeVariable('$calendarId') + '/events';
@@ -1702,37 +1610,19 @@
     if (eventId == null) {
       throw core.ArgumentError('Parameter eventId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (alwaysIncludeEmail != null) {
-      _queryParams['alwaysIncludeEmail'] = ['${alwaysIncludeEmail}'];
-    }
-    if (maxAttendees != null) {
-      _queryParams['maxAttendees'] = ['${maxAttendees}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (originalStart != null) {
-      _queryParams['originalStart'] = [originalStart];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (timeMax != null) {
-      _queryParams['timeMax'] = [(timeMax).toIso8601String()];
-    }
-    if (timeMin != null) {
-      _queryParams['timeMin'] = [(timeMin).toIso8601String()];
-    }
-    if (timeZone != null) {
-      _queryParams['timeZone'] = [timeZone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (alwaysIncludeEmail != null)
+        'alwaysIncludeEmail': ['${alwaysIncludeEmail}'],
+      if (maxAttendees != null) 'maxAttendees': ['${maxAttendees}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (originalStart != null) 'originalStart': [originalStart],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (timeMax != null) 'timeMax': [(timeMax).toIso8601String()],
+      if (timeMin != null) 'timeMin': [(timeMin).toIso8601String()],
+      if (timeZone != null) 'timeZone': [timeZone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -1891,61 +1781,30 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (alwaysIncludeEmail != null) {
-      _queryParams['alwaysIncludeEmail'] = ['${alwaysIncludeEmail}'];
-    }
-    if (iCalUID != null) {
-      _queryParams['iCalUID'] = [iCalUID];
-    }
-    if (maxAttendees != null) {
-      _queryParams['maxAttendees'] = ['${maxAttendees}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (privateExtendedProperty != null) {
-      _queryParams['privateExtendedProperty'] = privateExtendedProperty;
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (sharedExtendedProperty != null) {
-      _queryParams['sharedExtendedProperty'] = sharedExtendedProperty;
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (showHiddenInvitations != null) {
-      _queryParams['showHiddenInvitations'] = ['${showHiddenInvitations}'];
-    }
-    if (singleEvents != null) {
-      _queryParams['singleEvents'] = ['${singleEvents}'];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if (timeMax != null) {
-      _queryParams['timeMax'] = [(timeMax).toIso8601String()];
-    }
-    if (timeMin != null) {
-      _queryParams['timeMin'] = [(timeMin).toIso8601String()];
-    }
-    if (timeZone != null) {
-      _queryParams['timeZone'] = [timeZone];
-    }
-    if (updatedMin != null) {
-      _queryParams['updatedMin'] = [(updatedMin).toIso8601String()];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (alwaysIncludeEmail != null)
+        'alwaysIncludeEmail': ['${alwaysIncludeEmail}'],
+      if (iCalUID != null) 'iCalUID': [iCalUID],
+      if (maxAttendees != null) 'maxAttendees': ['${maxAttendees}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (privateExtendedProperty != null)
+        'privateExtendedProperty': privateExtendedProperty,
+      if (q != null) 'q': [q],
+      if (sharedExtendedProperty != null)
+        'sharedExtendedProperty': sharedExtendedProperty,
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (showHiddenInvitations != null)
+        'showHiddenInvitations': ['${showHiddenInvitations}'],
+      if (singleEvents != null) 'singleEvents': ['${singleEvents}'],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if (timeMax != null) 'timeMax': [(timeMax).toIso8601String()],
+      if (timeMin != null) 'timeMin': [(timeMin).toIso8601String()],
+      if (timeZone != null) 'timeZone': [timeZone],
+      if (updatedMin != null) 'updatedMin': [(updatedMin).toIso8601String()],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'calendars/' + commons.Escaper.ecapeVariable('$calendarId') + '/events';
@@ -2010,20 +1869,16 @@
     if (eventId == null) {
       throw core.ArgumentError('Parameter eventId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (destination == null) {
       throw core.ArgumentError('Parameter destination is required.');
     }
-    _queryParams['destination'] = [destination];
-    if (sendNotifications != null) {
-      _queryParams['sendNotifications'] = ['${sendNotifications}'];
-    }
-    if (sendUpdates != null) {
-      _queryParams['sendUpdates'] = [sendUpdates];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'destination': [destination],
+      if (sendNotifications != null)
+        'sendNotifications': ['${sendNotifications}'],
+      if (sendUpdates != null) 'sendUpdates': [sendUpdates],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -2118,28 +1973,19 @@
     if (eventId == null) {
       throw core.ArgumentError('Parameter eventId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (alwaysIncludeEmail != null) {
-      _queryParams['alwaysIncludeEmail'] = ['${alwaysIncludeEmail}'];
-    }
-    if (conferenceDataVersion != null) {
-      _queryParams['conferenceDataVersion'] = ['${conferenceDataVersion}'];
-    }
-    if (maxAttendees != null) {
-      _queryParams['maxAttendees'] = ['${maxAttendees}'];
-    }
-    if (sendNotifications != null) {
-      _queryParams['sendNotifications'] = ['${sendNotifications}'];
-    }
-    if (sendUpdates != null) {
-      _queryParams['sendUpdates'] = [sendUpdates];
-    }
-    if (supportsAttachments != null) {
-      _queryParams['supportsAttachments'] = ['${supportsAttachments}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (alwaysIncludeEmail != null)
+        'alwaysIncludeEmail': ['${alwaysIncludeEmail}'],
+      if (conferenceDataVersion != null)
+        'conferenceDataVersion': ['${conferenceDataVersion}'],
+      if (maxAttendees != null) 'maxAttendees': ['${maxAttendees}'],
+      if (sendNotifications != null)
+        'sendNotifications': ['${sendNotifications}'],
+      if (sendUpdates != null) 'sendUpdates': [sendUpdates],
+      if (supportsAttachments != null)
+        'supportsAttachments': ['${supportsAttachments}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -2201,20 +2047,16 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (text == null) {
       throw core.ArgumentError('Parameter text is required.');
     }
-    _queryParams['text'] = [text];
-    if (sendNotifications != null) {
-      _queryParams['sendNotifications'] = ['${sendNotifications}'];
-    }
-    if (sendUpdates != null) {
-      _queryParams['sendUpdates'] = [sendUpdates];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'text': [text],
+      if (sendNotifications != null)
+        'sendNotifications': ['${sendNotifications}'],
+      if (sendUpdates != null) 'sendUpdates': [sendUpdates],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -2305,28 +2147,19 @@
     if (eventId == null) {
       throw core.ArgumentError('Parameter eventId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (alwaysIncludeEmail != null) {
-      _queryParams['alwaysIncludeEmail'] = ['${alwaysIncludeEmail}'];
-    }
-    if (conferenceDataVersion != null) {
-      _queryParams['conferenceDataVersion'] = ['${conferenceDataVersion}'];
-    }
-    if (maxAttendees != null) {
-      _queryParams['maxAttendees'] = ['${maxAttendees}'];
-    }
-    if (sendNotifications != null) {
-      _queryParams['sendNotifications'] = ['${sendNotifications}'];
-    }
-    if (sendUpdates != null) {
-      _queryParams['sendUpdates'] = [sendUpdates];
-    }
-    if (supportsAttachments != null) {
-      _queryParams['supportsAttachments'] = ['${supportsAttachments}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (alwaysIncludeEmail != null)
+        'alwaysIncludeEmail': ['${alwaysIncludeEmail}'],
+      if (conferenceDataVersion != null)
+        'conferenceDataVersion': ['${conferenceDataVersion}'],
+      if (maxAttendees != null) 'maxAttendees': ['${maxAttendees}'],
+      if (sendNotifications != null)
+        'sendNotifications': ['${sendNotifications}'],
+      if (sendUpdates != null) 'sendUpdates': [sendUpdates],
+      if (supportsAttachments != null)
+        'supportsAttachments': ['${supportsAttachments}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -2490,61 +2323,30 @@
     if (calendarId == null) {
       throw core.ArgumentError('Parameter calendarId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (alwaysIncludeEmail != null) {
-      _queryParams['alwaysIncludeEmail'] = ['${alwaysIncludeEmail}'];
-    }
-    if (iCalUID != null) {
-      _queryParams['iCalUID'] = [iCalUID];
-    }
-    if (maxAttendees != null) {
-      _queryParams['maxAttendees'] = ['${maxAttendees}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (privateExtendedProperty != null) {
-      _queryParams['privateExtendedProperty'] = privateExtendedProperty;
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (sharedExtendedProperty != null) {
-      _queryParams['sharedExtendedProperty'] = sharedExtendedProperty;
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (showHiddenInvitations != null) {
-      _queryParams['showHiddenInvitations'] = ['${showHiddenInvitations}'];
-    }
-    if (singleEvents != null) {
-      _queryParams['singleEvents'] = ['${singleEvents}'];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if (timeMax != null) {
-      _queryParams['timeMax'] = [(timeMax).toIso8601String()];
-    }
-    if (timeMin != null) {
-      _queryParams['timeMin'] = [(timeMin).toIso8601String()];
-    }
-    if (timeZone != null) {
-      _queryParams['timeZone'] = [timeZone];
-    }
-    if (updatedMin != null) {
-      _queryParams['updatedMin'] = [(updatedMin).toIso8601String()];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (alwaysIncludeEmail != null)
+        'alwaysIncludeEmail': ['${alwaysIncludeEmail}'],
+      if (iCalUID != null) 'iCalUID': [iCalUID],
+      if (maxAttendees != null) 'maxAttendees': ['${maxAttendees}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (privateExtendedProperty != null)
+        'privateExtendedProperty': privateExtendedProperty,
+      if (q != null) 'q': [q],
+      if (sharedExtendedProperty != null)
+        'sharedExtendedProperty': sharedExtendedProperty,
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (showHiddenInvitations != null)
+        'showHiddenInvitations': ['${showHiddenInvitations}'],
+      if (singleEvents != null) 'singleEvents': ['${singleEvents}'],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if (timeMax != null) 'timeMax': [(timeMax).toIso8601String()],
+      if (timeMin != null) 'timeMin': [(timeMin).toIso8601String()],
+      if (timeZone != null) 'timeZone': [timeZone],
+      if (updatedMin != null) 'updatedMin': [(updatedMin).toIso8601String()],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'calendars/' +
         commons.Escaper.ecapeVariable('$calendarId') +
@@ -2587,10 +2389,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'freeBusy';
 
@@ -2633,10 +2434,9 @@
     if (setting == null) {
       throw core.ArgumentError('Parameter setting is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'users/me/settings/' + commons.Escaper.ecapeVariable('$setting');
@@ -2684,19 +2484,12 @@
     core.String syncToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'users/me/settings';
 
@@ -2748,19 +2541,12 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'users/me/settings/watch';
 
diff --git a/generated/googleapis/lib/chat/v1.dart b/generated/googleapis/lib/chat/v1.dart
index 555ed08..2ade306 100644
--- a/generated/googleapis/lib/chat/v1.dart
+++ b/generated/googleapis/lib/chat/v1.dart
@@ -119,13 +119,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (threadKey != null) {
-      _queryParams['threadKey'] = [threadKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (threadKey != null) 'threadKey': [threadKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/messages';
@@ -181,13 +178,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (threadKey != null) {
-      _queryParams['threadKey'] = [threadKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (threadKey != null) 'threadKey': [threadKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/webhooks';
@@ -249,13 +243,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (threadKey != null) {
-      _queryParams['threadKey'] = [threadKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (threadKey != null) 'threadKey': [threadKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/messages';
@@ -311,10 +302,9 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/media/' + commons.Escaper.ecapeVariableReserved('$resourceName');
@@ -384,13 +374,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (threadKey != null) {
-      _queryParams['threadKey'] = [threadKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (threadKey != null) 'threadKey': [threadKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/messages';
@@ -446,13 +433,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (threadKey != null) {
-      _queryParams['threadKey'] = [threadKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (threadKey != null) 'threadKey': [threadKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/webhooks';
@@ -514,13 +498,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (threadKey != null) {
-      _queryParams['threadKey'] = [threadKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (threadKey != null) 'threadKey': [threadKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/messages';
@@ -568,10 +549,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -609,16 +589,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/spaces';
 
@@ -673,13 +648,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (threadKey != null) {
-      _queryParams['threadKey'] = [threadKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (threadKey != null) 'threadKey': [threadKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/webhooks';
@@ -725,10 +697,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -776,16 +747,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/members';
@@ -848,13 +814,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (threadKey != null) {
-      _queryParams['threadKey'] = [threadKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (threadKey != null) 'threadKey': [threadKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/messages';
@@ -894,10 +857,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -935,10 +897,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -984,13 +945,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1038,10 +996,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/chromeuxreport/v1.dart b/generated/googleapis/lib/chromeuxreport/v1.dart
index 1570d5a..124f0d6 100644
--- a/generated/googleapis/lib/chromeuxreport/v1.dart
+++ b/generated/googleapis/lib/chromeuxreport/v1.dart
@@ -83,10 +83,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/records:queryRecord';
 
diff --git a/generated/googleapis/lib/civicinfo/v2.dart b/generated/googleapis/lib/civicinfo/v2.dart
index 19e36ef..624467e 100644
--- a/generated/googleapis/lib/civicinfo/v2.dart
+++ b/generated/googleapis/lib/civicinfo/v2.dart
@@ -85,13 +85,10 @@
     core.String query,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'civicinfo/v2/divisions';
 
@@ -127,10 +124,9 @@
   async.Future<ElectionsQueryResponse> electionQuery({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'civicinfo/v2/elections';
 
@@ -182,23 +178,17 @@
     core.bool returnAllAvailableData,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (address == null) {
       throw core.ArgumentError('Parameter address is required.');
     }
-    _queryParams['address'] = [address];
-    if (electionId != null) {
-      _queryParams['electionId'] = [electionId];
-    }
-    if (officialOnly != null) {
-      _queryParams['officialOnly'] = ['${officialOnly}'];
-    }
-    if (returnAllAvailableData != null) {
-      _queryParams['returnAllAvailableData'] = ['${returnAllAvailableData}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'address': [address],
+      if (electionId != null) 'electionId': [electionId],
+      if (officialOnly != null) 'officialOnly': ['${officialOnly}'],
+      if (returnAllAvailableData != null)
+        'returnAllAvailableData': ['${returnAllAvailableData}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'civicinfo/v2/voterinfo';
 
@@ -254,22 +244,13 @@
     core.List<core.String> roles,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (address != null) {
-      _queryParams['address'] = [address];
-    }
-    if (includeOffices != null) {
-      _queryParams['includeOffices'] = ['${includeOffices}'];
-    }
-    if (levels != null) {
-      _queryParams['levels'] = levels;
-    }
-    if (roles != null) {
-      _queryParams['roles'] = roles;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (address != null) 'address': [address],
+      if (includeOffices != null) 'includeOffices': ['${includeOffices}'],
+      if (levels != null) 'levels': levels,
+      if (roles != null) 'roles': roles,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'civicinfo/v2/representatives';
 
@@ -322,19 +303,12 @@
     if (ocdId == null) {
       throw core.ArgumentError('Parameter ocdId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (levels != null) {
-      _queryParams['levels'] = levels;
-    }
-    if (recursive != null) {
-      _queryParams['recursive'] = ['${recursive}'];
-    }
-    if (roles != null) {
-      _queryParams['roles'] = roles;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (levels != null) 'levels': levels,
+      if (recursive != null) 'recursive': ['${recursive}'],
+      if (roles != null) 'roles': roles,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'civicinfo/v2/representatives/' +
         commons.Escaper.ecapeVariable('$ocdId');
diff --git a/generated/googleapis/lib/classroom/v1.dart b/generated/googleapis/lib/classroom/v1.dart
index 8606191..c479792 100644
--- a/generated/googleapis/lib/classroom/v1.dart
+++ b/generated/googleapis/lib/classroom/v1.dart
@@ -205,10 +205,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/courses';
 
@@ -249,10 +248,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' + commons.Escaper.ecapeVariable('$id');
 
@@ -292,10 +290,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' + commons.Escaper.ecapeVariable('$id');
 
@@ -359,25 +356,14 @@
     core.String teacherId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (courseStates != null) {
-      _queryParams['courseStates'] = courseStates;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (studentId != null) {
-      _queryParams['studentId'] = [studentId];
-    }
-    if (teacherId != null) {
-      _queryParams['teacherId'] = [teacherId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (courseStates != null) 'courseStates': courseStates,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (studentId != null) 'studentId': [studentId],
+      if (teacherId != null) 'teacherId': [teacherId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/courses';
 
@@ -436,13 +422,10 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' + commons.Escaper.ecapeVariable('$id');
 
@@ -490,10 +473,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' + commons.Escaper.ecapeVariable('$id');
 
@@ -548,10 +530,9 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/courses/' + commons.Escaper.ecapeVariable('$courseId') + '/aliases';
@@ -604,10 +585,9 @@
     if (alias == null) {
       throw core.ArgumentError('Parameter alias is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -661,16 +641,11 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/courses/' + commons.Escaper.ecapeVariable('$courseId') + '/aliases';
@@ -728,10 +703,9 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -787,10 +761,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -841,10 +814,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -914,22 +886,13 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (announcementStates != null) {
-      _queryParams['announcementStates'] = announcementStates;
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (announcementStates != null) 'announcementStates': announcementStates,
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -986,10 +949,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1059,13 +1021,10 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1133,10 +1092,9 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1192,10 +1150,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1246,10 +1203,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1319,22 +1275,13 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (courseWorkStates != null) {
-      _queryParams['courseWorkStates'] = courseWorkStates;
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (courseWorkStates != null) 'courseWorkStates': courseWorkStates,
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1391,10 +1338,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1471,13 +1417,10 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1542,10 +1485,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1637,25 +1579,14 @@
     if (courseWorkId == null) {
       throw core.ArgumentError('Parameter courseWorkId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (late != null) {
-      _queryParams['late'] = [late];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (states != null) {
-      _queryParams['states'] = states;
-    }
-    if (userId != null) {
-      _queryParams['userId'] = [userId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (late != null) 'late': [late],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (states != null) 'states': states,
+      if (userId != null) 'userId': [userId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1725,10 +1656,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1807,13 +1737,10 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1887,10 +1814,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -1964,10 +1890,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2039,10 +1964,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2105,10 +2029,9 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2165,10 +2088,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2219,10 +2141,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2303,28 +2224,16 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (courseWorkMaterialStates != null) {
-      _queryParams['courseWorkMaterialStates'] = courseWorkMaterialStates;
-    }
-    if (materialDriveId != null) {
-      _queryParams['materialDriveId'] = [materialDriveId];
-    }
-    if (materialLink != null) {
-      _queryParams['materialLink'] = [materialLink];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (courseWorkMaterialStates != null)
+        'courseWorkMaterialStates': courseWorkMaterialStates,
+      if (materialDriveId != null) 'materialDriveId': [materialDriveId],
+      if (materialLink != null) 'materialLink': [materialLink],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2391,13 +2300,10 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2463,13 +2369,10 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enrollmentCode != null) {
-      _queryParams['enrollmentCode'] = [enrollmentCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enrollmentCode != null) 'enrollmentCode': [enrollmentCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2522,10 +2425,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2578,10 +2480,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2635,16 +2536,11 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2703,10 +2599,9 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2760,10 +2655,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2816,10 +2710,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2873,16 +2766,11 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -2938,10 +2826,9 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/courses/' + commons.Escaper.ecapeVariable('$courseId') + '/topics';
@@ -2991,10 +2878,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -3043,10 +2929,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -3101,16 +2986,11 @@
     if (courseId == null) {
       throw core.ArgumentError('Parameter courseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/courses/' + commons.Escaper.ecapeVariable('$courseId') + '/topics';
@@ -3173,13 +3053,10 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/courses/' +
         commons.Escaper.ecapeVariable('$courseId') +
@@ -3233,10 +3110,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/invitations/' + commons.Escaper.ecapeVariable('$id') + ':accept';
@@ -3280,10 +3156,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/invitations';
 
@@ -3325,10 +3200,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/invitations/' + commons.Escaper.ecapeVariable('$id');
 
@@ -3368,10 +3242,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/invitations/' + commons.Escaper.ecapeVariable('$id');
 
@@ -3427,22 +3300,13 @@
     core.String userId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (courseId != null) {
-      _queryParams['courseId'] = [courseId];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (userId != null) {
-      _queryParams['userId'] = [userId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (courseId != null) 'courseId': [courseId],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (userId != null) 'userId': [userId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/invitations';
 
@@ -3506,10 +3370,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/registrations';
 
@@ -3548,10 +3411,9 @@
     if (registrationId == null) {
       throw core.ArgumentError('Parameter registrationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/registrations/' + commons.Escaper.ecapeVariable('$registrationId');
@@ -3605,10 +3467,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/userProfiles/' + commons.Escaper.ecapeVariable('$userId');
 
@@ -3680,10 +3541,9 @@
     if (studentId == null) {
       throw core.ArgumentError('Parameter studentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/userProfiles/' +
         commons.Escaper.ecapeVariable('$studentId') +
@@ -3740,10 +3600,9 @@
     if (invitationId == null) {
       throw core.ArgumentError('Parameter invitationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/userProfiles/' +
         commons.Escaper.ecapeVariable('$studentId') +
@@ -3819,22 +3678,14 @@
     if (studentId == null) {
       throw core.ArgumentError('Parameter studentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (invitedEmailAddress != null) {
-      _queryParams['invitedEmailAddress'] = [invitedEmailAddress];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (states != null) {
-      _queryParams['states'] = states;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (invitedEmailAddress != null)
+        'invitedEmailAddress': [invitedEmailAddress],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (states != null) 'states': states,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/userProfiles/' +
         commons.Escaper.ecapeVariable('$studentId') +
@@ -3905,13 +3756,10 @@
     if (invitationId == null) {
       throw core.ArgumentError('Parameter invitationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/userProfiles/' +
         commons.Escaper.ecapeVariable('$studentId') +
@@ -3979,10 +3827,9 @@
     if (guardianId == null) {
       throw core.ArgumentError('Parameter guardianId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/userProfiles/' +
         commons.Escaper.ecapeVariable('$studentId') +
@@ -4040,10 +3887,9 @@
     if (guardianId == null) {
       throw core.ArgumentError('Parameter guardianId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/userProfiles/' +
         commons.Escaper.ecapeVariable('$studentId') +
@@ -4118,19 +3964,13 @@
     if (studentId == null) {
       throw core.ArgumentError('Parameter studentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (invitedEmailAddress != null) {
-      _queryParams['invitedEmailAddress'] = [invitedEmailAddress];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (invitedEmailAddress != null)
+        'invitedEmailAddress': [invitedEmailAddress],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/userProfiles/' +
         commons.Escaper.ecapeVariable('$studentId') +
diff --git a/generated/googleapis/lib/cloudasset/v1.dart b/generated/googleapis/lib/cloudasset/v1.dart
index a5bb1c8..5084519 100644
--- a/generated/googleapis/lib/cloudasset/v1.dart
+++ b/generated/googleapis/lib/cloudasset/v1.dart
@@ -98,10 +98,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/feeds';
@@ -141,10 +140,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -182,10 +180,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -224,10 +221,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/feeds';
@@ -275,10 +271,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -324,10 +319,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -476,60 +470,48 @@
     if (scope == null) {
       throw core.ArgumentError('Parameter scope is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (analysisQuery_accessSelector_permissions != null) {
-      _queryParams['analysisQuery.accessSelector.permissions'] =
-          analysisQuery_accessSelector_permissions;
-    }
-    if (analysisQuery_accessSelector_roles != null) {
-      _queryParams['analysisQuery.accessSelector.roles'] =
-          analysisQuery_accessSelector_roles;
-    }
-    if (analysisQuery_identitySelector_identity != null) {
-      _queryParams['analysisQuery.identitySelector.identity'] = [
-        analysisQuery_identitySelector_identity
-      ];
-    }
-    if (analysisQuery_options_analyzeServiceAccountImpersonation != null) {
-      _queryParams['analysisQuery.options.analyzeServiceAccountImpersonation'] =
-          ['${analysisQuery_options_analyzeServiceAccountImpersonation}'];
-    }
-    if (analysisQuery_options_expandGroups != null) {
-      _queryParams['analysisQuery.options.expandGroups'] = [
-        '${analysisQuery_options_expandGroups}'
-      ];
-    }
-    if (analysisQuery_options_expandResources != null) {
-      _queryParams['analysisQuery.options.expandResources'] = [
-        '${analysisQuery_options_expandResources}'
-      ];
-    }
-    if (analysisQuery_options_expandRoles != null) {
-      _queryParams['analysisQuery.options.expandRoles'] = [
-        '${analysisQuery_options_expandRoles}'
-      ];
-    }
-    if (analysisQuery_options_outputGroupEdges != null) {
-      _queryParams['analysisQuery.options.outputGroupEdges'] = [
-        '${analysisQuery_options_outputGroupEdges}'
-      ];
-    }
-    if (analysisQuery_options_outputResourceEdges != null) {
-      _queryParams['analysisQuery.options.outputResourceEdges'] = [
-        '${analysisQuery_options_outputResourceEdges}'
-      ];
-    }
-    if (analysisQuery_resourceSelector_fullResourceName != null) {
-      _queryParams['analysisQuery.resourceSelector.fullResourceName'] = [
-        analysisQuery_resourceSelector_fullResourceName
-      ];
-    }
-    if (executionTimeout != null) {
-      _queryParams['executionTimeout'] = [executionTimeout];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (analysisQuery_accessSelector_permissions != null)
+        'analysisQuery.accessSelector.permissions':
+            analysisQuery_accessSelector_permissions,
+      if (analysisQuery_accessSelector_roles != null)
+        'analysisQuery.accessSelector.roles':
+            analysisQuery_accessSelector_roles,
+      if (analysisQuery_identitySelector_identity != null)
+        'analysisQuery.identitySelector.identity': [
+          analysisQuery_identitySelector_identity
+        ],
+      if (analysisQuery_options_analyzeServiceAccountImpersonation != null)
+        'analysisQuery.options.analyzeServiceAccountImpersonation': [
+          '${analysisQuery_options_analyzeServiceAccountImpersonation}'
+        ],
+      if (analysisQuery_options_expandGroups != null)
+        'analysisQuery.options.expandGroups': [
+          '${analysisQuery_options_expandGroups}'
+        ],
+      if (analysisQuery_options_expandResources != null)
+        'analysisQuery.options.expandResources': [
+          '${analysisQuery_options_expandResources}'
+        ],
+      if (analysisQuery_options_expandRoles != null)
+        'analysisQuery.options.expandRoles': [
+          '${analysisQuery_options_expandRoles}'
+        ],
+      if (analysisQuery_options_outputGroupEdges != null)
+        'analysisQuery.options.outputGroupEdges': [
+          '${analysisQuery_options_outputGroupEdges}'
+        ],
+      if (analysisQuery_options_outputResourceEdges != null)
+        'analysisQuery.options.outputResourceEdges': [
+          '${analysisQuery_options_outputResourceEdges}'
+        ],
+      if (analysisQuery_resourceSelector_fullResourceName != null)
+        'analysisQuery.resourceSelector.fullResourceName': [
+          analysisQuery_resourceSelector_fullResourceName
+        ],
+      if (executionTimeout != null) 'executionTimeout': [executionTimeout],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$scope') +
@@ -590,10 +572,9 @@
     if (scope == null) {
       throw core.ArgumentError('Parameter scope is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$scope') +
@@ -667,22 +648,15 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (assetNames != null) {
-      _queryParams['assetNames'] = assetNames;
-    }
-    if (contentType != null) {
-      _queryParams['contentType'] = [contentType];
-    }
-    if (readTimeWindow_endTime != null) {
-      _queryParams['readTimeWindow.endTime'] = [readTimeWindow_endTime];
-    }
-    if (readTimeWindow_startTime != null) {
-      _queryParams['readTimeWindow.startTime'] = [readTimeWindow_startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (assetNames != null) 'assetNames': assetNames,
+      if (contentType != null) 'contentType': [contentType],
+      if (readTimeWindow_endTime != null)
+        'readTimeWindow.endTime': [readTimeWindow_endTime],
+      if (readTimeWindow_startTime != null)
+        'readTimeWindow.startTime': [readTimeWindow_startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -739,10 +713,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -839,19 +812,12 @@
     if (scope == null) {
       throw core.ArgumentError('Parameter scope is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$scope') +
@@ -967,25 +933,14 @@
     if (scope == null) {
       throw core.ArgumentError('Parameter scope is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (assetTypes != null) {
-      _queryParams['assetTypes'] = assetTypes;
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (assetTypes != null) 'assetTypes': assetTypes,
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$scope') +
diff --git a/generated/googleapis/lib/cloudbilling/v1.dart b/generated/googleapis/lib/cloudbilling/v1.dart
index 9bd68a8..770f7ca 100644
--- a/generated/googleapis/lib/cloudbilling/v1.dart
+++ b/generated/googleapis/lib/cloudbilling/v1.dart
@@ -110,10 +110,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/billingAccounts';
 
@@ -155,10 +154,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -210,15 +208,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -269,19 +263,12 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/billingAccounts';
 
@@ -333,13 +320,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -389,10 +373,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -442,10 +425,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -509,16 +491,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/projects';
@@ -567,10 +544,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/billingInfo';
@@ -641,10 +617,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/billingInfo';
@@ -692,16 +667,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/services';
 
@@ -774,25 +744,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (currencyCode != null) {
-      _queryParams['currencyCode'] = [currencyCode];
-    }
-    if (endTime != null) {
-      _queryParams['endTime'] = [endTime];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (currencyCode != null) 'currencyCode': [currencyCode],
+      if (endTime != null) 'endTime': [endTime],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startTime != null) 'startTime': [startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/skus';
diff --git a/generated/googleapis/lib/cloudbuild/v1.dart b/generated/googleapis/lib/cloudbuild/v1.dart
index 02a96da..b380aa9 100644
--- a/generated/googleapis/lib/cloudbuild/v1.dart
+++ b/generated/googleapis/lib/cloudbuild/v1.dart
@@ -104,10 +104,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -148,10 +147,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -214,10 +212,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -270,13 +267,10 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -327,13 +321,10 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -391,22 +382,13 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -472,10 +454,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -541,10 +522,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -595,13 +575,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projectId != null) 'projectId': [projectId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/builds';
@@ -650,16 +627,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (id != null) {
-      _queryParams['id'] = [id];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (id != null) 'id': [id],
+      if (projectId != null) 'projectId': [projectId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -715,22 +687,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (projectId != null) 'projectId': [projectId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/builds';
@@ -792,10 +755,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':retry';
@@ -855,10 +817,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -900,10 +861,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -952,10 +912,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1002,10 +961,9 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1052,10 +1010,9 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1102,16 +1059,11 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1162,10 +1114,9 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1216,10 +1167,9 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1275,13 +1225,10 @@
     if (trigger == null) {
       throw core.ArgumentError('Parameter trigger is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (secret != null) {
-      _queryParams['secret'] = [secret];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (secret != null) 'secret': [secret],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
diff --git a/generated/googleapis/lib/clouddebugger/v2.dart b/generated/googleapis/lib/clouddebugger/v2.dart
index cbb54e5..a1c04b7 100644
--- a/generated/googleapis/lib/clouddebugger/v2.dart
+++ b/generated/googleapis/lib/clouddebugger/v2.dart
@@ -114,10 +114,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/controller/debuggees/register';
 
@@ -188,19 +187,12 @@
     if (debuggeeId == null) {
       throw core.ArgumentError('Parameter debuggeeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (agentId != null) {
-      _queryParams['agentId'] = [agentId];
-    }
-    if (successOnTimeout != null) {
-      _queryParams['successOnTimeout'] = ['${successOnTimeout}'];
-    }
-    if (waitToken != null) {
-      _queryParams['waitToken'] = [waitToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (agentId != null) 'agentId': [agentId],
+      if (successOnTimeout != null) 'successOnTimeout': ['${successOnTimeout}'],
+      if (waitToken != null) 'waitToken': [waitToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/controller/debuggees/' +
         commons.Escaper.ecapeVariable('$debuggeeId') +
@@ -256,10 +248,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/controller/debuggees/' +
         commons.Escaper.ecapeVariable('$debuggeeId') +
@@ -323,19 +314,12 @@
     core.String project,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientVersion != null) {
-      _queryParams['clientVersion'] = [clientVersion];
-    }
-    if (includeInactive != null) {
-      _queryParams['includeInactive'] = ['${includeInactive}'];
-    }
-    if (project != null) {
-      _queryParams['project'] = [project];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientVersion != null) 'clientVersion': [clientVersion],
+      if (includeInactive != null) 'includeInactive': ['${includeInactive}'],
+      if (project != null) 'project': [project],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/debugger/debuggees';
 
@@ -388,13 +372,10 @@
     if (breakpointId == null) {
       throw core.ArgumentError('Parameter breakpointId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientVersion != null) {
-      _queryParams['clientVersion'] = [clientVersion];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientVersion != null) 'clientVersion': [clientVersion],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/debugger/debuggees/' +
         commons.Escaper.ecapeVariable('$debuggeeId') +
@@ -442,13 +423,10 @@
     if (breakpointId == null) {
       throw core.ArgumentError('Parameter breakpointId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientVersion != null) {
-      _queryParams['clientVersion'] = [clientVersion];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientVersion != null) 'clientVersion': [clientVersion],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/debugger/debuggees/' +
         commons.Escaper.ecapeVariable('$debuggeeId') +
@@ -522,28 +500,15 @@
     if (debuggeeId == null) {
       throw core.ArgumentError('Parameter debuggeeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (action_value != null) {
-      _queryParams['action.value'] = [action_value];
-    }
-    if (clientVersion != null) {
-      _queryParams['clientVersion'] = [clientVersion];
-    }
-    if (includeAllUsers != null) {
-      _queryParams['includeAllUsers'] = ['${includeAllUsers}'];
-    }
-    if (includeInactive != null) {
-      _queryParams['includeInactive'] = ['${includeInactive}'];
-    }
-    if (stripResults != null) {
-      _queryParams['stripResults'] = ['${stripResults}'];
-    }
-    if (waitToken != null) {
-      _queryParams['waitToken'] = [waitToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (action_value != null) 'action.value': [action_value],
+      if (clientVersion != null) 'clientVersion': [clientVersion],
+      if (includeAllUsers != null) 'includeAllUsers': ['${includeAllUsers}'],
+      if (includeInactive != null) 'includeInactive': ['${includeInactive}'],
+      if (stripResults != null) 'stripResults': ['${stripResults}'],
+      if (waitToken != null) 'waitToken': [waitToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/debugger/debuggees/' +
         commons.Escaper.ecapeVariable('$debuggeeId') +
@@ -604,16 +569,11 @@
     if (debuggeeId == null) {
       throw core.ArgumentError('Parameter debuggeeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (canaryOption != null) {
-      _queryParams['canaryOption'] = [canaryOption];
-    }
-    if (clientVersion != null) {
-      _queryParams['clientVersion'] = [clientVersion];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (canaryOption != null) 'canaryOption': [canaryOption],
+      if (clientVersion != null) 'clientVersion': [clientVersion],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/debugger/debuggees/' +
         commons.Escaper.ecapeVariable('$debuggeeId') +
diff --git a/generated/googleapis/lib/cloudfunctions/v1.dart b/generated/googleapis/lib/cloudfunctions/v1.dart
index c51b1a7..5faa997 100644
--- a/generated/googleapis/lib/cloudfunctions/v1.dart
+++ b/generated/googleapis/lib/cloudfunctions/v1.dart
@@ -90,10 +90,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -151,22 +150,13 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (name != null) 'name': [name],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/operations';
 
@@ -230,19 +220,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -297,10 +280,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':call';
@@ -348,10 +330,9 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$location') +
@@ -394,10 +375,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -444,10 +424,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -509,10 +488,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -554,10 +532,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -609,15 +586,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -668,16 +641,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/functions';
@@ -726,13 +694,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -779,10 +744,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -833,10 +797,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
diff --git a/generated/googleapis/lib/cloudidentity/v1.dart b/generated/googleapis/lib/cloudidentity/v1.dart
index d218f57..0e09416 100644
--- a/generated/googleapis/lib/cloudidentity/v1.dart
+++ b/generated/googleapis/lib/cloudidentity/v1.dart
@@ -120,10 +120,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancelWipe';
@@ -172,13 +171,10 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/devices';
 
@@ -226,13 +222,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -280,13 +273,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -361,28 +351,15 @@
     core.String view,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/devices';
 
@@ -428,10 +405,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':wipe';
@@ -487,10 +463,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':approve';
@@ -537,10 +512,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':block';
@@ -590,10 +564,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancelWipe';
@@ -645,13 +618,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -699,13 +669,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -773,25 +740,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -872,25 +828,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (androidId != null) {
-      _queryParams['androidId'] = [androidId];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (rawResourceId != null) {
-      _queryParams['rawResourceId'] = [rawResourceId];
-    }
-    if (userId != null) {
-      _queryParams['userId'] = [userId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (androidId != null) 'androidId': [androidId],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (rawResourceId != null) 'rawResourceId': [rawResourceId],
+      if (userId != null) 'userId': [userId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + ':lookup';
@@ -944,10 +889,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':wipe';
@@ -1012,13 +956,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1081,22 +1022,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1172,16 +1104,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customer != null) {
-      _queryParams['customer'] = [customer];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customer != null) 'customer': [customer],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1235,13 +1162,11 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (initialGroupConfig != null) {
-      _queryParams['initialGroupConfig'] = [initialGroupConfig];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (initialGroupConfig != null)
+        'initialGroupConfig': [initialGroupConfig],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/groups';
 
@@ -1280,10 +1205,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1321,10 +1245,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1379,22 +1302,13 @@
     core.String view,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parent != null) 'parent': [parent],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/groups';
 
@@ -1440,16 +1354,12 @@
     core.String groupKey_namespace,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (groupKey_id != null) {
-      _queryParams['groupKey.id'] = [groupKey_id];
-    }
-    if (groupKey_namespace != null) {
-      _queryParams['groupKey.namespace'] = [groupKey_namespace];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (groupKey_id != null) 'groupKey.id': [groupKey_id],
+      if (groupKey_namespace != null)
+        'groupKey.namespace': [groupKey_namespace],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/groups:lookup';
 
@@ -1497,13 +1407,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1561,22 +1468,13 @@
     core.String view,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/groups:search';
 
@@ -1639,13 +1537,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1690,10 +1585,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1735,10 +1629,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1777,10 +1670,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1840,13 +1732,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1906,19 +1795,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1974,16 +1856,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (memberKey_id != null) {
-      _queryParams['memberKey.id'] = [memberKey_id];
-    }
-    if (memberKey_namespace != null) {
-      _queryParams['memberKey.namespace'] = [memberKey_namespace];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (memberKey_id != null) 'memberKey.id': [memberKey_id],
+      if (memberKey_namespace != null)
+        'memberKey.namespace': [memberKey_namespace],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2030,10 +1908,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2100,19 +1977,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2169,16 +2039,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/cloudiot/v1.dart b/generated/googleapis/lib/cloudiot/v1.dart
index 87c4dc8..4fb6d0e 100644
--- a/generated/googleapis/lib/cloudiot/v1.dart
+++ b/generated/googleapis/lib/cloudiot/v1.dart
@@ -126,10 +126,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -176,10 +175,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -221,10 +219,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -262,10 +259,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -313,10 +309,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -368,16 +363,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -430,13 +420,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -484,10 +471,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -537,10 +523,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -587,10 +572,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -650,10 +634,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/devices';
@@ -695,10 +678,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -742,13 +724,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -835,40 +814,24 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (deviceIds != null) {
-      _queryParams['deviceIds'] = deviceIds;
-    }
-    if (deviceNumIds != null) {
-      _queryParams['deviceNumIds'] = deviceNumIds;
-    }
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if (gatewayListOptions_associationsDeviceId != null) {
-      _queryParams['gatewayListOptions.associationsDeviceId'] = [
-        gatewayListOptions_associationsDeviceId
-      ];
-    }
-    if (gatewayListOptions_associationsGatewayId != null) {
-      _queryParams['gatewayListOptions.associationsGatewayId'] = [
-        gatewayListOptions_associationsGatewayId
-      ];
-    }
-    if (gatewayListOptions_gatewayType != null) {
-      _queryParams['gatewayListOptions.gatewayType'] = [
-        gatewayListOptions_gatewayType
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (deviceIds != null) 'deviceIds': deviceIds,
+      if (deviceNumIds != null) 'deviceNumIds': deviceNumIds,
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if (gatewayListOptions_associationsDeviceId != null)
+        'gatewayListOptions.associationsDeviceId': [
+          gatewayListOptions_associationsDeviceId
+        ],
+      if (gatewayListOptions_associationsGatewayId != null)
+        'gatewayListOptions.associationsGatewayId': [
+          gatewayListOptions_associationsGatewayId
+        ],
+      if (gatewayListOptions_gatewayType != null)
+        'gatewayListOptions.gatewayType': [gatewayListOptions_gatewayType],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/devices';
@@ -918,10 +881,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -977,13 +939,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1042,10 +1001,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1104,13 +1062,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (numVersions != null) {
-      _queryParams['numVersions'] = ['${numVersions}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (numVersions != null) 'numVersions': ['${numVersions}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1166,13 +1121,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (numStates != null) {
-      _queryParams['numStates'] = ['${numStates}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (numStates != null) 'numStates': ['${numStates}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/states';
@@ -1231,10 +1183,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1283,10 +1234,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1336,10 +1286,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1437,40 +1386,24 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (deviceIds != null) {
-      _queryParams['deviceIds'] = deviceIds;
-    }
-    if (deviceNumIds != null) {
-      _queryParams['deviceNumIds'] = deviceNumIds;
-    }
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if (gatewayListOptions_associationsDeviceId != null) {
-      _queryParams['gatewayListOptions.associationsDeviceId'] = [
-        gatewayListOptions_associationsDeviceId
-      ];
-    }
-    if (gatewayListOptions_associationsGatewayId != null) {
-      _queryParams['gatewayListOptions.associationsGatewayId'] = [
-        gatewayListOptions_associationsGatewayId
-      ];
-    }
-    if (gatewayListOptions_gatewayType != null) {
-      _queryParams['gatewayListOptions.gatewayType'] = [
-        gatewayListOptions_gatewayType
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (deviceIds != null) 'deviceIds': deviceIds,
+      if (deviceNumIds != null) 'deviceNumIds': deviceNumIds,
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if (gatewayListOptions_associationsDeviceId != null)
+        'gatewayListOptions.associationsDeviceId': [
+          gatewayListOptions_associationsDeviceId
+        ],
+      if (gatewayListOptions_associationsGatewayId != null)
+        'gatewayListOptions.associationsGatewayId': [
+          gatewayListOptions_associationsGatewayId
+        ],
+      if (gatewayListOptions_gatewayType != null)
+        'gatewayListOptions.gatewayType': [gatewayListOptions_gatewayType],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/devices';
diff --git a/generated/googleapis/lib/cloudkms/v1.dart b/generated/googleapis/lib/cloudkms/v1.dart
index 0d337c4..e700770 100644
--- a/generated/googleapis/lib/cloudkms/v1.dart
+++ b/generated/googleapis/lib/cloudkms/v1.dart
@@ -106,10 +106,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -154,19 +153,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -226,13 +218,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (keyRingId != null) {
-      _queryParams['keyRingId'] = [keyRingId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (keyRingId != null) 'keyRingId': [keyRingId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/keyRings';
@@ -271,10 +260,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -325,15 +313,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -393,22 +377,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/keyRings';
@@ -457,10 +432,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -512,10 +486,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -586,18 +559,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (cryptoKeyId != null) {
-      _queryParams['cryptoKeyId'] = [cryptoKeyId];
-    }
-    if (skipInitialVersionCreation != null) {
-      _queryParams['skipInitialVersionCreation'] = [
-        '${skipInitialVersionCreation}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (cryptoKeyId != null) 'cryptoKeyId': [cryptoKeyId],
+      if (skipInitialVersionCreation != null)
+        'skipInitialVersionCreation': ['${skipInitialVersionCreation}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -645,10 +612,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':decrypt';
@@ -697,10 +663,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':encrypt';
@@ -741,10 +706,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -795,15 +759,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -873,25 +833,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (versionView != null) {
-      _queryParams['versionView'] = [versionView];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (versionView != null) 'versionView': [versionView],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -940,13 +889,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -994,10 +940,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1049,10 +994,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1100,10 +1044,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1159,10 +1102,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1211,10 +1153,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1264,10 +1205,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1319,10 +1259,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':destroy';
@@ -1362,10 +1301,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1405,10 +1343,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/publicKey';
@@ -1455,10 +1392,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1530,25 +1466,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1602,13 +1527,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1655,10 +1577,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':restore';
@@ -1717,13 +1638,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (importJobId != null) {
-      _queryParams['importJobId'] = [importJobId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (importJobId != null) 'importJobId': [importJobId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1763,10 +1681,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1817,15 +1734,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1886,22 +1799,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1951,10 +1855,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2006,10 +1909,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
diff --git a/generated/googleapis/lib/cloudprofiler/v2.dart b/generated/googleapis/lib/cloudprofiler/v2.dart
index 623eb12..18ba306 100644
--- a/generated/googleapis/lib/cloudprofiler/v2.dart
+++ b/generated/googleapis/lib/cloudprofiler/v2.dart
@@ -115,10 +115,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/profiles';
@@ -164,10 +163,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -222,13 +220,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/cloudresourcemanager/v1.dart b/generated/googleapis/lib/cloudresourcemanager/v1.dart
index 6dfbcf2..40809c9 100644
--- a/generated/googleapis/lib/cloudresourcemanager/v1.dart
+++ b/generated/googleapis/lib/cloudresourcemanager/v1.dart
@@ -102,10 +102,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -155,10 +154,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -207,10 +205,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -255,10 +252,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -303,10 +299,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -355,10 +350,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -406,10 +400,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/liens';
 
@@ -450,10 +443,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -494,10 +486,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -545,19 +536,12 @@
     core.String parent,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/liens';
 
@@ -603,10 +587,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -653,10 +636,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -698,10 +680,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -749,10 +730,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -803,10 +783,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -855,10 +834,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -903,10 +881,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -951,10 +928,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -998,10 +974,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/organizations:search';
 
@@ -1051,10 +1026,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1102,10 +1076,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1155,10 +1128,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1209,10 +1181,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1261,10 +1232,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/projects';
 
@@ -1311,10 +1281,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' + commons.Escaper.ecapeVariable('$projectId');
 
@@ -1352,10 +1321,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' + commons.Escaper.ecapeVariable('$projectId');
 
@@ -1398,10 +1366,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1452,10 +1419,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1507,10 +1473,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$resource') +
@@ -1559,10 +1524,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1640,19 +1604,12 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/projects';
 
@@ -1695,10 +1652,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1743,10 +1699,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1826,10 +1781,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$resource') +
@@ -1877,10 +1831,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1930,10 +1883,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$resource') +
@@ -1982,10 +1934,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2031,10 +1982,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' + commons.Escaper.ecapeVariable('$projectId');
 
diff --git a/generated/googleapis/lib/cloudresourcemanager/v2.dart b/generated/googleapis/lib/cloudresourcemanager/v2.dart
index 8a5084e..04f39a4 100644
--- a/generated/googleapis/lib/cloudresourcemanager/v2.dart
+++ b/generated/googleapis/lib/cloudresourcemanager/v2.dart
@@ -111,13 +111,10 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/folders';
 
@@ -161,10 +158,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -205,10 +201,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -257,10 +252,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -315,22 +309,13 @@
     core.bool showDeleted,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parent != null) 'parent': [parent],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/folders';
 
@@ -387,10 +372,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -449,13 +433,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -495,10 +476,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/folders:search';
 
@@ -548,10 +528,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -601,10 +580,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -657,10 +635,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':undelete';
@@ -707,10 +684,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/cloudscheduler/v1.dart b/generated/googleapis/lib/cloudscheduler/v1.dart
index f27b29b..082d4b3 100644
--- a/generated/googleapis/lib/cloudscheduler/v1.dart
+++ b/generated/googleapis/lib/cloudscheduler/v1.dart
@@ -97,10 +97,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -145,19 +144,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -208,10 +200,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
@@ -251,10 +242,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -292,10 +282,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -346,16 +335,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
@@ -419,13 +403,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -474,10 +455,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':pause';
@@ -526,10 +506,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':resume';
@@ -577,10 +556,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':run';
diff --git a/generated/googleapis/lib/cloudsearch/v1.dart b/generated/googleapis/lib/cloudsearch/v1.dart
index 15c3593..d0186cc 100644
--- a/generated/googleapis/lib/cloudsearch/v1.dart
+++ b/generated/googleapis/lib/cloudsearch/v1.dart
@@ -194,15 +194,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/debug/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -250,10 +246,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/debug/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -315,21 +310,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/debug/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -409,27 +396,15 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if (groupResourceName != null) {
-      _queryParams['groupResourceName'] = [groupResourceName];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (userResourceName != null) {
-      _queryParams['userResourceName'] = [userResourceName];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if (groupResourceName != null) 'groupResourceName': [groupResourceName],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (userResourceName != null) 'userResourceName': [userResourceName],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/debug/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -505,24 +480,15 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (resolutionStatusCode != null) {
-      _queryParams['resolutionStatusCode'] = [resolutionStatusCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (resolutionStatusCode != null)
+        'resolutionStatusCode': [resolutionStatusCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/debug/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -587,15 +553,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -640,15 +602,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -696,10 +654,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -775,24 +732,14 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (connectorName != null) {
-      _queryParams['connectorName'] = [connectorName];
-    }
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if (mode != null) {
-      _queryParams['mode'] = [mode];
-    }
-    if (version != null) {
-      _queryParams['version'] = [version];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (connectorName != null) 'connectorName': [connectorName],
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if (mode != null) 'mode': [mode],
+      if (version != null) 'version': [version],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/indexing/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -839,10 +786,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -893,18 +839,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (connectorName != null) {
-      _queryParams['connectorName'] = [connectorName];
-    }
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (connectorName != null) 'connectorName': [connectorName],
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/indexing/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -953,10 +893,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1025,27 +964,15 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (brief != null) {
-      _queryParams['brief'] = ['${brief}'];
-    }
-    if (connectorName != null) {
-      _queryParams['connectorName'] = [connectorName];
-    }
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (brief != null) 'brief': ['${brief}'],
+      if (connectorName != null) 'connectorName': [connectorName],
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1101,10 +1028,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1154,10 +1080,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1207,10 +1132,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1260,10 +1184,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/indexing/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1331,10 +1254,9 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -1391,10 +1313,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1454,19 +1375,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/lro';
@@ -1519,10 +1433,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/query/search';
 
@@ -1564,10 +1477,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/query/suggest';
 
@@ -1642,31 +1554,22 @@
     core.String requestOptions_timeZone,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (requestOptions_debugOptions_enableDebugging != null) {
-      _queryParams['requestOptions.debugOptions.enableDebugging'] = [
-        '${requestOptions_debugOptions_enableDebugging}'
-      ];
-    }
-    if (requestOptions_languageCode != null) {
-      _queryParams['requestOptions.languageCode'] = [
-        requestOptions_languageCode
-      ];
-    }
-    if (requestOptions_searchApplicationId != null) {
-      _queryParams['requestOptions.searchApplicationId'] = [
-        requestOptions_searchApplicationId
-      ];
-    }
-    if (requestOptions_timeZone != null) {
-      _queryParams['requestOptions.timeZone'] = [requestOptions_timeZone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (requestOptions_debugOptions_enableDebugging != null)
+        'requestOptions.debugOptions.enableDebugging': [
+          '${requestOptions_debugOptions_enableDebugging}'
+        ],
+      if (requestOptions_languageCode != null)
+        'requestOptions.languageCode': [requestOptions_languageCode],
+      if (requestOptions_searchApplicationId != null)
+        'requestOptions.searchApplicationId': [
+          requestOptions_searchApplicationId
+        ],
+      if (requestOptions_timeZone != null)
+        'requestOptions.timeZone': [requestOptions_timeZone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/query/sources';
 
@@ -1721,10 +1624,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/settings/datasources';
 
@@ -1767,15 +1669,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/settings/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -1818,15 +1716,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/settings/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -1870,21 +1764,13 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/settings/datasources';
 
@@ -1929,10 +1815,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/settings/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -1977,10 +1862,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/settings/searchapplications';
 
@@ -2024,15 +1908,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/settings/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -2076,15 +1956,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/settings/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -2128,21 +2004,13 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (debugOptions_enableDebugging != null) {
-      _queryParams['debugOptions.enableDebugging'] = [
-        '${debugOptions_enableDebugging}'
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (debugOptions_enableDebugging != null)
+        'debugOptions.enableDebugging': ['${debugOptions_enableDebugging}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/settings/searchapplications';
 
@@ -2188,10 +2056,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/settings/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2238,10 +2105,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/settings/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -2307,28 +2173,15 @@
     core.int toDate_year,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fromDate_day != null) {
-      _queryParams['fromDate.day'] = ['${fromDate_day}'];
-    }
-    if (fromDate_month != null) {
-      _queryParams['fromDate.month'] = ['${fromDate_month}'];
-    }
-    if (fromDate_year != null) {
-      _queryParams['fromDate.year'] = ['${fromDate_year}'];
-    }
-    if (toDate_day != null) {
-      _queryParams['toDate.day'] = ['${toDate_day}'];
-    }
-    if (toDate_month != null) {
-      _queryParams['toDate.month'] = ['${toDate_month}'];
-    }
-    if (toDate_year != null) {
-      _queryParams['toDate.year'] = ['${toDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fromDate_day != null) 'fromDate.day': ['${fromDate_day}'],
+      if (fromDate_month != null) 'fromDate.month': ['${fromDate_month}'],
+      if (fromDate_year != null) 'fromDate.year': ['${fromDate_year}'],
+      if (toDate_day != null) 'toDate.day': ['${toDate_day}'],
+      if (toDate_month != null) 'toDate.month': ['${toDate_month}'],
+      if (toDate_year != null) 'toDate.year': ['${toDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/stats/index';
 
@@ -2380,28 +2233,15 @@
     core.int toDate_year,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fromDate_day != null) {
-      _queryParams['fromDate.day'] = ['${fromDate_day}'];
-    }
-    if (fromDate_month != null) {
-      _queryParams['fromDate.month'] = ['${fromDate_month}'];
-    }
-    if (fromDate_year != null) {
-      _queryParams['fromDate.year'] = ['${fromDate_year}'];
-    }
-    if (toDate_day != null) {
-      _queryParams['toDate.day'] = ['${toDate_day}'];
-    }
-    if (toDate_month != null) {
-      _queryParams['toDate.month'] = ['${toDate_month}'];
-    }
-    if (toDate_year != null) {
-      _queryParams['toDate.year'] = ['${toDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fromDate_day != null) 'fromDate.day': ['${fromDate_day}'],
+      if (fromDate_month != null) 'fromDate.month': ['${fromDate_month}'],
+      if (fromDate_year != null) 'fromDate.year': ['${fromDate_year}'],
+      if (toDate_day != null) 'toDate.day': ['${toDate_day}'],
+      if (toDate_month != null) 'toDate.month': ['${toDate_month}'],
+      if (toDate_year != null) 'toDate.year': ['${toDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/stats/query';
 
@@ -2454,28 +2294,15 @@
     core.int toDate_year,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fromDate_day != null) {
-      _queryParams['fromDate.day'] = ['${fromDate_day}'];
-    }
-    if (fromDate_month != null) {
-      _queryParams['fromDate.month'] = ['${fromDate_month}'];
-    }
-    if (fromDate_year != null) {
-      _queryParams['fromDate.year'] = ['${fromDate_year}'];
-    }
-    if (toDate_day != null) {
-      _queryParams['toDate.day'] = ['${toDate_day}'];
-    }
-    if (toDate_month != null) {
-      _queryParams['toDate.month'] = ['${toDate_month}'];
-    }
-    if (toDate_year != null) {
-      _queryParams['toDate.year'] = ['${toDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fromDate_day != null) 'fromDate.day': ['${fromDate_day}'],
+      if (fromDate_month != null) 'fromDate.month': ['${fromDate_month}'],
+      if (fromDate_year != null) 'fromDate.year': ['${fromDate_year}'],
+      if (toDate_day != null) 'toDate.day': ['${toDate_day}'],
+      if (toDate_month != null) 'toDate.month': ['${toDate_month}'],
+      if (toDate_year != null) 'toDate.year': ['${toDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/stats/session';
 
@@ -2527,28 +2354,15 @@
     core.int toDate_year,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fromDate_day != null) {
-      _queryParams['fromDate.day'] = ['${fromDate_day}'];
-    }
-    if (fromDate_month != null) {
-      _queryParams['fromDate.month'] = ['${fromDate_month}'];
-    }
-    if (fromDate_year != null) {
-      _queryParams['fromDate.year'] = ['${fromDate_year}'];
-    }
-    if (toDate_day != null) {
-      _queryParams['toDate.day'] = ['${toDate_day}'];
-    }
-    if (toDate_month != null) {
-      _queryParams['toDate.month'] = ['${toDate_month}'];
-    }
-    if (toDate_year != null) {
-      _queryParams['toDate.year'] = ['${toDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fromDate_day != null) 'fromDate.day': ['${fromDate_day}'],
+      if (fromDate_month != null) 'fromDate.month': ['${fromDate_month}'],
+      if (fromDate_year != null) 'fromDate.year': ['${fromDate_year}'],
+      if (toDate_day != null) 'toDate.day': ['${toDate_day}'],
+      if (toDate_month != null) 'toDate.month': ['${toDate_month}'],
+      if (toDate_year != null) 'toDate.year': ['${toDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/stats/user';
 
@@ -2624,28 +2438,15 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fromDate_day != null) {
-      _queryParams['fromDate.day'] = ['${fromDate_day}'];
-    }
-    if (fromDate_month != null) {
-      _queryParams['fromDate.month'] = ['${fromDate_month}'];
-    }
-    if (fromDate_year != null) {
-      _queryParams['fromDate.year'] = ['${fromDate_year}'];
-    }
-    if (toDate_day != null) {
-      _queryParams['toDate.day'] = ['${toDate_day}'];
-    }
-    if (toDate_month != null) {
-      _queryParams['toDate.month'] = ['${toDate_month}'];
-    }
-    if (toDate_year != null) {
-      _queryParams['toDate.year'] = ['${toDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fromDate_day != null) 'fromDate.day': ['${fromDate_day}'],
+      if (fromDate_month != null) 'fromDate.month': ['${fromDate_month}'],
+      if (fromDate_year != null) 'fromDate.year': ['${fromDate_year}'],
+      if (toDate_day != null) 'toDate.day': ['${toDate_day}'],
+      if (toDate_month != null) 'toDate.month': ['${toDate_month}'],
+      if (toDate_year != null) 'toDate.year': ['${toDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/stats/index/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -2722,28 +2523,15 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fromDate_day != null) {
-      _queryParams['fromDate.day'] = ['${fromDate_day}'];
-    }
-    if (fromDate_month != null) {
-      _queryParams['fromDate.month'] = ['${fromDate_month}'];
-    }
-    if (fromDate_year != null) {
-      _queryParams['fromDate.year'] = ['${fromDate_year}'];
-    }
-    if (toDate_day != null) {
-      _queryParams['toDate.day'] = ['${toDate_day}'];
-    }
-    if (toDate_month != null) {
-      _queryParams['toDate.month'] = ['${toDate_month}'];
-    }
-    if (toDate_year != null) {
-      _queryParams['toDate.year'] = ['${toDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fromDate_day != null) 'fromDate.day': ['${fromDate_day}'],
+      if (fromDate_month != null) 'fromDate.month': ['${fromDate_month}'],
+      if (fromDate_year != null) 'fromDate.year': ['${fromDate_year}'],
+      if (toDate_day != null) 'toDate.day': ['${toDate_day}'],
+      if (toDate_month != null) 'toDate.month': ['${toDate_month}'],
+      if (toDate_year != null) 'toDate.year': ['${toDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/stats/query/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -2821,28 +2609,15 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fromDate_day != null) {
-      _queryParams['fromDate.day'] = ['${fromDate_day}'];
-    }
-    if (fromDate_month != null) {
-      _queryParams['fromDate.month'] = ['${fromDate_month}'];
-    }
-    if (fromDate_year != null) {
-      _queryParams['fromDate.year'] = ['${fromDate_year}'];
-    }
-    if (toDate_day != null) {
-      _queryParams['toDate.day'] = ['${toDate_day}'];
-    }
-    if (toDate_month != null) {
-      _queryParams['toDate.month'] = ['${toDate_month}'];
-    }
-    if (toDate_year != null) {
-      _queryParams['toDate.year'] = ['${toDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fromDate_day != null) 'fromDate.day': ['${fromDate_day}'],
+      if (fromDate_month != null) 'fromDate.month': ['${fromDate_month}'],
+      if (fromDate_year != null) 'fromDate.year': ['${fromDate_year}'],
+      if (toDate_day != null) 'toDate.day': ['${toDate_day}'],
+      if (toDate_month != null) 'toDate.month': ['${toDate_month}'],
+      if (toDate_year != null) 'toDate.year': ['${toDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/stats/session/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -2919,28 +2694,15 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fromDate_day != null) {
-      _queryParams['fromDate.day'] = ['${fromDate_day}'];
-    }
-    if (fromDate_month != null) {
-      _queryParams['fromDate.month'] = ['${fromDate_month}'];
-    }
-    if (fromDate_year != null) {
-      _queryParams['fromDate.year'] = ['${fromDate_year}'];
-    }
-    if (toDate_day != null) {
-      _queryParams['toDate.day'] = ['${toDate_day}'];
-    }
-    if (toDate_month != null) {
-      _queryParams['toDate.month'] = ['${toDate_month}'];
-    }
-    if (toDate_year != null) {
-      _queryParams['toDate.year'] = ['${toDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fromDate_day != null) 'fromDate.day': ['${fromDate_day}'],
+      if (fromDate_month != null) 'fromDate.month': ['${fromDate_month}'],
+      if (fromDate_year != null) 'fromDate.year': ['${fromDate_year}'],
+      if (toDate_day != null) 'toDate.day': ['${toDate_day}'],
+      if (toDate_month != null) 'toDate.month': ['${toDate_month}'],
+      if (toDate_year != null) 'toDate.year': ['${toDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/stats/user/' + commons.Escaper.ecapeVariableReserved('$name');
diff --git a/generated/googleapis/lib/cloudshell/v1.dart b/generated/googleapis/lib/cloudshell/v1.dart
index 1d545a7..7c9fc4d 100644
--- a/generated/googleapis/lib/cloudshell/v1.dart
+++ b/generated/googleapis/lib/cloudshell/v1.dart
@@ -102,10 +102,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -147,10 +146,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -189,10 +187,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -246,19 +243,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -320,10 +310,9 @@
     if (environment == null) {
       throw core.ArgumentError('Parameter environment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$environment') +
@@ -373,10 +362,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':authorize';
@@ -418,10 +406,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -468,10 +455,9 @@
     if (environment == null) {
       throw core.ArgumentError('Parameter environment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$environment') +
@@ -523,10 +509,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':start';
diff --git a/generated/googleapis/lib/cloudtasks/v2.dart b/generated/googleapis/lib/cloudtasks/v2.dart
index 012a319..a332a00 100644
--- a/generated/googleapis/lib/cloudtasks/v2.dart
+++ b/generated/googleapis/lib/cloudtasks/v2.dart
@@ -98,10 +98,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -146,19 +145,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -222,10 +214,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/queues';
@@ -273,10 +264,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -314,10 +304,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -366,10 +355,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -433,19 +421,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/queues';
@@ -513,13 +494,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -567,10 +545,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':pause';
@@ -619,10 +596,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':purge';
@@ -674,10 +650,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':resume';
@@ -729,10 +704,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -784,10 +758,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -845,10 +818,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tasks';
@@ -891,10 +863,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -952,13 +923,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (responseView != null) {
-      _queryParams['responseView'] = [responseView];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (responseView != null) 'responseView': [responseView],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1034,19 +1002,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (responseView != null) {
-      _queryParams['responseView'] = [responseView];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (responseView != null) 'responseView': [responseView],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tasks';
@@ -1104,10 +1065,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':run';
diff --git a/generated/googleapis/lib/cloudtrace/v2.dart b/generated/googleapis/lib/cloudtrace/v2.dart
index 1b16472..9773be8 100644
--- a/generated/googleapis/lib/cloudtrace/v2.dart
+++ b/generated/googleapis/lib/cloudtrace/v2.dart
@@ -117,10 +117,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -176,10 +175,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/composer/v1.dart b/generated/googleapis/lib/composer/v1.dart
index 7212ae6..e042033 100644
--- a/generated/googleapis/lib/composer/v1.dart
+++ b/generated/googleapis/lib/composer/v1.dart
@@ -116,10 +116,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -160,10 +159,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -201,10 +199,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -249,16 +246,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -373,13 +365,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -435,19 +424,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includePastReleases != null) {
-      _queryParams['includePastReleases'] = ['${includePastReleases}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includePastReleases != null)
+        'includePastReleases': ['${includePastReleases}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -498,10 +481,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -541,10 +523,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -598,19 +579,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/compute/v1.dart b/generated/googleapis/lib/compute/v1.dart
index e15d7e8..40bccd8 100644
--- a/generated/googleapis/lib/compute/v1.dart
+++ b/generated/googleapis/lib/compute/v1.dart
@@ -362,28 +362,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -438,10 +426,9 @@
     if (acceleratorType == null) {
       throw core.ArgumentError('Parameter acceleratorType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -546,25 +533,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -675,28 +652,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -765,13 +730,10 @@
     if (address == null) {
       throw core.ArgumentError('Parameter address is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -828,10 +790,9 @@
     if (address == null) {
       throw core.ArgumentError('Parameter address is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -900,13 +861,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1009,25 +967,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1138,28 +1086,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1228,13 +1164,10 @@
     if (autoscaler == null) {
       throw core.ArgumentError('Parameter autoscaler is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1293,10 +1226,9 @@
     if (autoscaler == null) {
       throw core.ArgumentError('Parameter autoscaler is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1366,13 +1298,10 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1475,25 +1404,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1570,16 +1489,11 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (autoscaler != null) {
-      _queryParams['autoscaler'] = [autoscaler];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (autoscaler != null) 'autoscaler': [autoscaler],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1653,16 +1567,11 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (autoscaler != null) {
-      _queryParams['autoscaler'] = [autoscaler];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (autoscaler != null) 'autoscaler': [autoscaler],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1737,13 +1646,10 @@
     if (backendBucket == null) {
       throw core.ArgumentError('Parameter backendBucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1807,13 +1713,10 @@
     if (backendBucket == null) {
       throw core.ArgumentError('Parameter backendBucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1878,17 +1781,14 @@
     if (backendBucket == null) {
       throw core.ArgumentError('Parameter backendBucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (keyName == null) {
       throw core.ArgumentError('Parameter keyName is required.');
     }
-    _queryParams['keyName'] = [keyName];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'keyName': [keyName],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1939,10 +1839,9 @@
     if (backendBucket == null) {
       throw core.ArgumentError('Parameter backendBucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2003,13 +1902,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2104,25 +2000,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2193,13 +2079,10 @@
     if (backendBucket == null) {
       throw core.ArgumentError('Parameter backendBucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2268,13 +2151,10 @@
     if (backendBucket == null) {
       throw core.ArgumentError('Parameter backendBucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2348,13 +2228,10 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2460,28 +2337,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2543,13 +2408,10 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2614,17 +2476,14 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (keyName == null) {
       throw core.ArgumentError('Parameter keyName is required.');
     }
-    _queryParams['keyName'] = [keyName];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'keyName': [keyName],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2675,10 +2534,9 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2737,10 +2595,9 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2805,13 +2662,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2906,25 +2760,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2995,13 +2839,10 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3068,13 +2909,10 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3146,13 +2984,10 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3262,28 +3097,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3340,10 +3163,9 @@
     if (diskType == null) {
       throw core.ArgumentError('Parameter diskType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3446,25 +3268,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3549,13 +3361,10 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3662,28 +3471,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3763,16 +3560,11 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (guestFlush != null) {
-      _queryParams['guestFlush'] = ['${guestFlush}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (guestFlush != null) 'guestFlush': ['${guestFlush}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3847,13 +3639,10 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3912,10 +3701,9 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -3977,15 +3765,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4064,16 +3848,11 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (sourceImage != null) {
-      _queryParams['sourceImage'] = [sourceImage];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (sourceImage != null) 'sourceImage': [sourceImage],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4176,25 +3955,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4269,13 +4038,10 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4355,13 +4121,10 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4427,10 +4190,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4510,13 +4272,10 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4580,10 +4339,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4656,13 +4414,10 @@
     if (externalVpnGateway == null) {
       throw core.ArgumentError('Parameter externalVpnGateway is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4711,10 +4466,9 @@
     if (externalVpnGateway == null) {
       throw core.ArgumentError('Parameter externalVpnGateway is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4775,13 +4529,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4876,25 +4627,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -4949,10 +4690,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -5007,10 +4747,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -5082,18 +4821,12 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (replaceExistingAssociation != null) {
-      _queryParams['replaceExistingAssociation'] = [
-        '${replaceExistingAssociation}'
-      ];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (replaceExistingAssociation != null)
+        'replaceExistingAssociation': ['${replaceExistingAssociation}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy') +
@@ -5151,13 +4884,10 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy') +
@@ -5213,16 +4943,12 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (sourceFirewallPolicy != null) {
-      _queryParams['sourceFirewallPolicy'] = [sourceFirewallPolicy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (sourceFirewallPolicy != null)
+        'sourceFirewallPolicy': [sourceFirewallPolicy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy') +
@@ -5274,13 +5000,10 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy');
@@ -5317,10 +5040,9 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy');
@@ -5362,13 +5084,10 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy') +
@@ -5412,15 +5131,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$resource') +
@@ -5462,13 +5177,10 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (priority != null) {
-      _queryParams['priority'] = ['${priority}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (priority != null) 'priority': ['${priority}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy') +
@@ -5525,16 +5237,11 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parentId != null) {
-      _queryParams['parentId'] = [parentId];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parentId != null) 'parentId': [parentId],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'locations/global/firewallPolicies';
 
@@ -5622,28 +5329,16 @@
     core.bool returnPartialSuccess,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parentId != null) {
-      _queryParams['parentId'] = [parentId];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parentId != null) 'parentId': [parentId],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'locations/global/firewallPolicies';
 
@@ -5677,13 +5372,10 @@
     core.String targetResource,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (targetResource != null) {
-      _queryParams['targetResource'] = [targetResource];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (targetResource != null) 'targetResource': [targetResource],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'locations/global/firewallPolicies/listAssociations';
 
@@ -5737,16 +5429,11 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parentId != null) {
-      _queryParams['parentId'] = [parentId];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parentId != null) 'parentId': [parentId],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy') +
@@ -5803,13 +5490,10 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy');
@@ -5869,16 +5553,11 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (priority != null) {
-      _queryParams['priority'] = ['${priority}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (priority != null) 'priority': ['${priority}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy') +
@@ -5934,16 +5613,11 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy') +
@@ -5998,16 +5672,11 @@
     if (firewallPolicy == null) {
       throw core.ArgumentError('Parameter firewallPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (priority != null) {
-      _queryParams['priority'] = ['${priority}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (priority != null) 'priority': ['${priority}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$firewallPolicy') +
@@ -6052,10 +5721,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$resource') +
@@ -6099,10 +5767,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/firewallPolicies/' +
         commons.Escaper.ecapeVariable('$resource') +
@@ -6171,13 +5838,10 @@
     if (firewall == null) {
       throw core.ArgumentError('Parameter firewall is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -6225,10 +5889,9 @@
     if (firewall == null) {
       throw core.ArgumentError('Parameter firewall is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -6288,13 +5951,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -6388,25 +6048,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -6476,13 +6126,10 @@
     if (firewall == null) {
       throw core.ArgumentError('Parameter firewall is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -6553,13 +6200,10 @@
     if (firewall == null) {
       throw core.ArgumentError('Parameter firewall is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -6669,28 +6313,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -6759,13 +6391,10 @@
     if (forwardingRule == null) {
       throw core.ArgumentError('Parameter forwardingRule is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -6822,10 +6451,9 @@
     if (forwardingRule == null) {
       throw core.ArgumentError('Parameter forwardingRule is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -6895,13 +6523,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7005,25 +6630,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7104,13 +6719,10 @@
     if (forwardingRule == null) {
       throw core.ArgumentError('Parameter forwardingRule is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7189,13 +6801,10 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7276,13 +6885,10 @@
     if (forwardingRule == null) {
       throw core.ArgumentError('Parameter forwardingRule is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7354,13 +6960,10 @@
     if (address == null) {
       throw core.ArgumentError('Parameter address is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7410,10 +7013,9 @@
     if (address == null) {
       throw core.ArgumentError('Parameter address is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7473,13 +7075,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7573,25 +7172,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7660,13 +7249,10 @@
     if (forwardingRule == null) {
       throw core.ArgumentError('Parameter forwardingRule is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7716,10 +7302,9 @@
     if (forwardingRule == null) {
       throw core.ArgumentError('Parameter forwardingRule is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7780,13 +7365,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7881,25 +7463,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -7971,13 +7543,10 @@
     if (forwardingRule == null) {
       throw core.ArgumentError('Parameter forwardingRule is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8033,10 +7602,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8108,13 +7676,10 @@
     if (forwardingRule == null) {
       throw core.ArgumentError('Parameter forwardingRule is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8189,13 +7754,10 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8259,13 +7821,10 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8331,13 +7890,10 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8389,10 +7945,9 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8453,13 +8008,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8554,25 +8106,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8674,25 +8216,15 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8803,28 +8335,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8870,10 +8390,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -8923,10 +8442,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9021,25 +8539,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9101,10 +8609,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9153,13 +8660,10 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parentId != null) {
-      _queryParams['parentId'] = [parentId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parentId != null) 'parentId': [parentId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/operations/' +
         commons.Escaper.ecapeVariable('$operation');
@@ -9202,13 +8706,10 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parentId != null) {
-      _queryParams['parentId'] = [parentId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parentId != null) 'parentId': [parentId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'locations/global/operations/' +
         commons.Escaper.ecapeVariable('$operation');
@@ -9296,28 +8797,16 @@
     core.bool returnPartialSuccess,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parentId != null) {
-      _queryParams['parentId'] = [parentId];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parentId != null) 'parentId': [parentId],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'locations/global/operations';
 
@@ -9425,28 +8914,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9508,13 +8985,10 @@
     if (healthCheck == null) {
       throw core.ArgumentError('Parameter healthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9564,10 +9038,9 @@
     if (healthCheck == null) {
       throw core.ArgumentError('Parameter healthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9628,13 +9101,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9729,25 +9199,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9818,13 +9278,10 @@
     if (healthCheck == null) {
       throw core.ArgumentError('Parameter healthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9893,13 +9350,10 @@
     if (healthCheck == null) {
       throw core.ArgumentError('Parameter healthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -9968,13 +9422,10 @@
     if (httpHealthCheck == null) {
       throw core.ArgumentError('Parameter httpHealthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10024,10 +9475,9 @@
     if (httpHealthCheck == null) {
       throw core.ArgumentError('Parameter httpHealthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10088,13 +9538,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10189,25 +9636,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10278,13 +9715,10 @@
     if (httpHealthCheck == null) {
       throw core.ArgumentError('Parameter httpHealthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10353,13 +9787,10 @@
     if (httpHealthCheck == null) {
       throw core.ArgumentError('Parameter httpHealthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10428,13 +9859,10 @@
     if (httpsHealthCheck == null) {
       throw core.ArgumentError('Parameter httpsHealthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10484,10 +9912,9 @@
     if (httpsHealthCheck == null) {
       throw core.ArgumentError('Parameter httpsHealthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10548,13 +9975,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10649,25 +10073,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10738,13 +10152,10 @@
     if (httpsHealthCheck == null) {
       throw core.ArgumentError('Parameter httpsHealthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10813,13 +10224,10 @@
     if (httpsHealthCheck == null) {
       throw core.ArgumentError('Parameter httpsHealthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10888,13 +10296,10 @@
     if (image == null) {
       throw core.ArgumentError('Parameter image is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -10963,13 +10368,10 @@
     if (image == null) {
       throw core.ArgumentError('Parameter image is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11021,10 +10423,9 @@
     if (image == null) {
       throw core.ArgumentError('Parameter image is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11073,10 +10474,9 @@
     if (family == null) {
       throw core.ArgumentError('Parameter family is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11129,15 +10529,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11201,16 +10597,11 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (forceCreate != null) {
-      _queryParams['forceCreate'] = ['${forceCreate}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (forceCreate != null) 'forceCreate': ['${forceCreate}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11310,25 +10701,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11397,13 +10778,10 @@
     if (image == null) {
       throw core.ArgumentError('Parameter image is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11459,10 +10837,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11519,10 +10896,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11577,10 +10953,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11676,13 +11051,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11789,28 +11161,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11871,10 +11231,9 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -11957,13 +11316,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12037,13 +11393,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12130,13 +11483,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12199,10 +11549,9 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12261,10 +11610,9 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12343,13 +11691,10 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12452,25 +11797,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12585,25 +11920,15 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12720,25 +12045,15 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12854,25 +12169,15 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -12955,13 +12260,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13040,13 +12342,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13134,13 +12433,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13236,17 +12532,14 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (size == null) {
       throw core.ArgumentError('Parameter size is required.');
     }
-    _queryParams['size'] = ['${size}'];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'size': ['${size}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13325,13 +12618,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13413,13 +12703,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13499,13 +12786,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13590,13 +12874,10 @@
     if (instanceGroup == null) {
       throw core.ArgumentError('Parameter instanceGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13703,28 +12984,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13794,13 +13063,10 @@
     if (instanceGroup == null) {
       throw core.ArgumentError('Parameter instanceGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13859,10 +13125,9 @@
     if (instanceGroup == null) {
       throw core.ArgumentError('Parameter instanceGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -13931,13 +13196,10 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14043,25 +13305,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14177,25 +13429,15 @@
     if (instanceGroup == null) {
       throw core.ArgumentError('Parameter instanceGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14277,13 +13519,10 @@
     if (instanceGroup == null) {
       throw core.ArgumentError('Parameter instanceGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14359,13 +13598,10 @@
     if (instanceGroup == null) {
       throw core.ArgumentError('Parameter instanceGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14441,13 +13677,10 @@
     if (instanceTemplate == null) {
       throw core.ArgumentError('Parameter instanceTemplate is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14497,10 +13730,9 @@
     if (instanceTemplate == null) {
       throw core.ArgumentError('Parameter instanceTemplate is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14554,15 +13786,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14627,13 +13855,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14728,25 +13953,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14801,10 +14016,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14859,10 +14073,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -14949,17 +14162,14 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (networkInterface == null) {
       throw core.ArgumentError('Parameter networkInterface is required.');
     }
-    _queryParams['networkInterface'] = [networkInterface];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'networkInterface': [networkInterface],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15040,13 +14250,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15154,28 +14361,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15258,16 +14453,11 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (forceAttach != null) {
-      _queryParams['forceAttach'] = ['${forceAttach}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (forceAttach != null) 'forceAttach': ['${forceAttach}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15342,13 +14532,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15425,21 +14612,18 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (accessConfig == null) {
       throw core.ArgumentError('Parameter accessConfig is required.');
     }
-    _queryParams['accessConfig'] = [accessConfig];
     if (networkInterface == null) {
       throw core.ArgumentError('Parameter networkInterface is required.');
     }
-    _queryParams['networkInterface'] = [networkInterface];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'accessConfig': [accessConfig],
+      'networkInterface': [networkInterface],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15515,17 +14699,14 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (deviceName == null) {
       throw core.ArgumentError('Parameter deviceName is required.');
     }
-    _queryParams['deviceName'] = [deviceName];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'deviceName': [deviceName],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15585,10 +14766,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15651,16 +14831,11 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (queryPath != null) {
-      _queryParams['queryPath'] = [queryPath];
-    }
-    if (variableKey != null) {
-      _queryParams['variableKey'] = [variableKey];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (queryPath != null) 'queryPath': [queryPath],
+      if (variableKey != null) 'variableKey': [variableKey],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15724,15 +14899,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15790,10 +14961,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15873,16 +15043,11 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (port != null) {
-      _queryParams['port'] = ['${port}'];
-    }
-    if (start_1 != null) {
-      _queryParams['start'] = [start_1];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (port != null) 'port': ['${port}'],
+      if (start_1 != null) 'start': [start_1],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -15941,10 +15106,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16026,16 +15190,12 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (sourceInstanceTemplate != null) {
-      _queryParams['sourceInstanceTemplate'] = [sourceInstanceTemplate];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (sourceInstanceTemplate != null)
+        'sourceInstanceTemplate': [sourceInstanceTemplate],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16138,25 +15298,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16273,25 +15423,15 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16369,13 +15509,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16451,13 +15588,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16533,16 +15667,12 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (deletionProtection != null) {
-      _queryParams['deletionProtection'] = ['${deletionProtection}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (deletionProtection != null)
+        'deletionProtection': ['${deletionProtection}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16623,21 +15753,18 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (autoDelete == null) {
       throw core.ArgumentError('Parameter autoDelete is required.');
     }
-    _queryParams['autoDelete'] = ['${autoDelete}'];
     if (deviceName == null) {
       throw core.ArgumentError('Parameter deviceName is required.');
     }
-    _queryParams['deviceName'] = [deviceName];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'autoDelete': ['${autoDelete}'],
+      'deviceName': [deviceName],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16702,10 +15829,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16785,13 +15911,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16870,13 +15993,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -16955,13 +16075,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17040,13 +16157,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17127,13 +16241,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17215,13 +16326,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17302,13 +16410,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17389,13 +16494,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17474,13 +16576,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17539,10 +16638,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17616,13 +16714,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17701,13 +16796,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17786,13 +16878,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17855,10 +16944,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -17963,21 +17051,13 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (minimalAction != null) {
-      _queryParams['minimalAction'] = [minimalAction];
-    }
-    if (mostDisruptiveAllowedAction != null) {
-      _queryParams['mostDisruptiveAllowedAction'] = [
-        mostDisruptiveAllowedAction
-      ];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (minimalAction != null) 'minimalAction': [minimalAction],
+      if (mostDisruptiveAllowedAction != null)
+        'mostDisruptiveAllowedAction': [mostDisruptiveAllowedAction],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18062,17 +17142,14 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (networkInterface == null) {
       throw core.ArgumentError('Parameter networkInterface is required.');
     }
-    _queryParams['networkInterface'] = [networkInterface];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'networkInterface': [networkInterface],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18153,13 +17230,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18246,17 +17320,14 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (networkInterface == null) {
       throw core.ArgumentError('Parameter networkInterface is required.');
     }
-    _queryParams['networkInterface'] = [networkInterface];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'networkInterface': [networkInterface],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18337,13 +17408,10 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18457,28 +17525,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18547,13 +17603,10 @@
     if (interconnectAttachment == null) {
       throw core.ArgumentError('Parameter interconnectAttachment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18610,10 +17663,9 @@
     if (interconnectAttachment == null) {
       throw core.ArgumentError('Parameter interconnectAttachment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18686,16 +17738,11 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (validateOnly != null) {
-      _queryParams['validateOnly'] = ['${validateOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (validateOnly != null) 'validateOnly': ['${validateOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18799,25 +17846,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18897,13 +17934,10 @@
     if (interconnectAttachment == null) {
       throw core.ArgumentError('Parameter interconnectAttachment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -18964,10 +17998,9 @@
     if (interconnectLocation == null) {
       throw core.ArgumentError('Parameter interconnectLocation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19063,25 +18096,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19149,13 +18172,10 @@
     if (interconnect == null) {
       throw core.ArgumentError('Parameter interconnect is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19205,10 +18225,9 @@
     if (interconnect == null) {
       throw core.ArgumentError('Parameter interconnect is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19257,10 +18276,9 @@
     if (interconnect == null) {
       throw core.ArgumentError('Parameter interconnect is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19322,13 +18340,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19422,25 +18437,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19510,13 +18515,10 @@
     if (interconnect == null) {
       throw core.ArgumentError('Parameter interconnect is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19575,10 +18577,9 @@
     if (licenseCode == null) {
       throw core.ArgumentError('Parameter licenseCode is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19635,10 +18636,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19712,13 +18712,10 @@
     if (license == null) {
       throw core.ArgumentError('Parameter license is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19769,10 +18766,9 @@
     if (license == null) {
       throw core.ArgumentError('Parameter license is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19827,15 +18823,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -19898,13 +18890,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20005,25 +18994,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20079,10 +19058,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20140,10 +19118,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20255,28 +19232,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20333,10 +19298,9 @@
     if (machineType == null) {
       throw core.ArgumentError('Parameter machineType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20440,25 +19404,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20570,28 +19524,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20665,13 +19607,10 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20747,13 +19686,10 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20829,13 +19765,10 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20896,10 +19829,9 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -20969,13 +19901,10 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21079,25 +20008,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21213,25 +20132,15 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21296,10 +20205,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21377,13 +20285,10 @@
     if (network == null) {
       throw core.ArgumentError('Parameter network is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21447,13 +20352,10 @@
     if (network == null) {
       throw core.ArgumentError('Parameter network is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21503,10 +20405,9 @@
     if (network == null) {
       throw core.ArgumentError('Parameter network is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21566,13 +20467,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21666,25 +20564,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21799,34 +20687,18 @@
     if (network == null) {
       throw core.ArgumentError('Parameter network is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (direction != null) {
-      _queryParams['direction'] = [direction];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (peeringName != null) {
-      _queryParams['peeringName'] = [peeringName];
-    }
-    if (region != null) {
-      _queryParams['region'] = [region];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (direction != null) 'direction': [direction],
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (peeringName != null) 'peeringName': [peeringName],
+      if (region != null) 'region': [region],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21897,13 +20769,10 @@
     if (network == null) {
       throw core.ArgumentError('Parameter network is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -21971,13 +20840,10 @@
     if (network == null) {
       throw core.ArgumentError('Parameter network is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22041,13 +20907,10 @@
     if (network == null) {
       throw core.ArgumentError('Parameter network is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22119,13 +20982,10 @@
     if (network == null) {
       throw core.ArgumentError('Parameter network is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22207,13 +21067,10 @@
     if (nodeGroup == null) {
       throw core.ArgumentError('Parameter nodeGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22322,28 +21179,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22412,13 +21257,10 @@
     if (nodeGroup == null) {
       throw core.ArgumentError('Parameter nodeGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22494,13 +21336,10 @@
     if (nodeGroup == null) {
       throw core.ArgumentError('Parameter nodeGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22562,10 +21401,9 @@
     if (nodeGroup == null) {
       throw core.ArgumentError('Parameter nodeGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22627,15 +21465,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22708,17 +21542,14 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (initialNodeCount == null) {
       throw core.ArgumentError('Parameter initialNodeCount is required.');
     }
-    _queryParams['initialNodeCount'] = ['${initialNodeCount}'];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'initialNodeCount': ['${initialNodeCount}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22823,25 +21654,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -22952,25 +21773,15 @@
     if (nodeGroup == null) {
       throw core.ArgumentError('Parameter nodeGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23048,13 +21859,10 @@
     if (nodeGroup == null) {
       throw core.ArgumentError('Parameter nodeGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23119,10 +21927,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23200,13 +22007,10 @@
     if (nodeGroup == null) {
       throw core.ArgumentError('Parameter nodeGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23270,10 +22074,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23387,28 +22190,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23477,13 +22268,10 @@
     if (nodeTemplate == null) {
       throw core.ArgumentError('Parameter nodeTemplate is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23542,10 +22330,9 @@
     if (nodeTemplate == null) {
       throw core.ArgumentError('Parameter nodeTemplate is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23608,15 +22395,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23686,13 +22469,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23795,25 +22575,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23877,10 +22647,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -23944,10 +22713,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24061,28 +22829,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24139,10 +22895,9 @@
     if (nodeType == null) {
       throw core.ArgumentError('Parameter nodeType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24245,25 +23000,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24374,28 +23119,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24464,13 +23197,10 @@
     if (packetMirroring == null) {
       throw core.ArgumentError('Parameter packetMirroring is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24527,10 +23257,9 @@
     if (packetMirroring == null) {
       throw core.ArgumentError('Parameter packetMirroring is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24600,13 +23329,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24710,25 +23436,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24808,13 +23524,10 @@
     if (packetMirroring == null) {
       throw core.ArgumentError('Parameter packetMirroring is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24877,10 +23590,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -24945,13 +23657,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25010,13 +23719,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25070,13 +23776,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25136,13 +23839,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25182,10 +23882,9 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' + commons.Escaper.ecapeVariable('$project');
 
@@ -25224,10 +23923,9 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$project') + '/getXpnHost';
@@ -25320,25 +24018,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25437,25 +24125,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25515,13 +24193,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$project') + '/moveDisk';
@@ -25580,13 +24255,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25646,13 +24318,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25714,13 +24383,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25783,13 +24449,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25864,13 +24527,10 @@
     if (autoscaler == null) {
       throw core.ArgumentError('Parameter autoscaler is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -25927,10 +24587,9 @@
     if (autoscaler == null) {
       throw core.ArgumentError('Parameter autoscaler is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26000,13 +24659,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26109,25 +24765,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26204,16 +24850,11 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (autoscaler != null) {
-      _queryParams['autoscaler'] = [autoscaler];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (autoscaler != null) 'autoscaler': [autoscaler],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26287,16 +24928,11 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (autoscaler != null) {
-      _queryParams['autoscaler'] = [autoscaler];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (autoscaler != null) 'autoscaler': [autoscaler],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26374,13 +25010,10 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26437,10 +25070,9 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26505,10 +25137,9 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26582,13 +25213,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26692,25 +25320,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26791,13 +25409,10 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26877,13 +25492,10 @@
     if (backendService == null) {
       throw core.ArgumentError('Parameter backendService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -26995,28 +25607,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27073,10 +25673,9 @@
     if (commitment == null) {
       throw core.ArgumentError('Parameter commitment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27146,13 +25745,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27255,25 +25851,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27338,10 +25924,9 @@
     if (diskType == null) {
       throw core.ArgumentError('Parameter diskType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27445,25 +26030,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27548,13 +26123,10 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27632,13 +26204,10 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27714,13 +26283,10 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27777,10 +26343,9 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27842,15 +26407,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -27924,16 +26485,11 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (sourceImage != null) {
-      _queryParams['sourceImage'] = [sourceImage];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (sourceImage != null) 'sourceImage': [sourceImage],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28037,25 +26593,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28130,13 +26676,10 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28214,13 +26757,10 @@
     if (disk == null) {
       throw core.ArgumentError('Parameter disk is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28286,10 +26826,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28367,13 +26906,10 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28437,10 +26973,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28520,13 +27055,10 @@
     if (healthCheckService == null) {
       throw core.ArgumentError('Parameter healthCheckService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28582,10 +27114,9 @@
     if (healthCheckService == null) {
       throw core.ArgumentError('Parameter healthCheckService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28655,13 +27186,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28765,25 +27293,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28862,13 +27380,10 @@
     if (healthCheckService == null) {
       throw core.ArgumentError('Parameter healthCheckService is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -28946,13 +27461,10 @@
     if (healthCheck == null) {
       throw core.ArgumentError('Parameter healthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29011,10 +27523,9 @@
     if (healthCheck == null) {
       throw core.ArgumentError('Parameter healthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29084,13 +27595,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29194,25 +27702,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29292,13 +27790,10 @@
     if (healthCheck == null) {
       throw core.ArgumentError('Parameter healthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29376,13 +27871,10 @@
     if (healthCheck == null) {
       throw core.ArgumentError('Parameter healthCheck is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29478,13 +27970,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29547,10 +28036,9 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29633,13 +28121,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29710,13 +28195,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29803,13 +28285,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29872,10 +28351,9 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -29931,10 +28409,9 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30011,13 +28488,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30120,25 +28594,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30253,25 +28717,15 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30386,25 +28840,15 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30520,25 +28964,15 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30620,13 +29054,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30705,13 +29136,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30799,13 +29227,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30892,17 +29317,14 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (size == null) {
       throw core.ArgumentError('Parameter size is required.');
     }
-    _queryParams['size'] = ['${size}'];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'size': ['${size}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -30979,13 +29401,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31063,13 +29482,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31149,13 +29565,10 @@
     if (instanceGroupManager == null) {
       throw core.ArgumentError('Parameter instanceGroupManager is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31218,10 +29631,9 @@
     if (instanceGroup == null) {
       throw core.ArgumentError('Parameter instanceGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31325,25 +29737,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31462,25 +29864,15 @@
     if (instanceGroup == null) {
       throw core.ArgumentError('Parameter instanceGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31557,13 +29949,10 @@
     if (instanceGroup == null) {
       throw core.ArgumentError('Parameter instanceGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31645,13 +30034,10 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31710,10 +30096,9 @@
     if (networkEndpointGroup == null) {
       throw core.ArgumentError('Parameter networkEndpointGroup is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31783,13 +30168,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31893,25 +30275,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -31990,13 +30362,10 @@
     if (notificationEndpoint == null) {
       throw core.ArgumentError('Parameter notificationEndpoint is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32054,10 +30423,9 @@
     if (notificationEndpoint == null) {
       throw core.ArgumentError('Parameter notificationEndpoint is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32127,13 +30495,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32236,25 +30601,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32315,10 +30670,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32375,10 +30729,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32482,25 +30835,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32571,10 +30914,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32653,13 +30995,10 @@
     if (sslCertificate == null) {
       throw core.ArgumentError('Parameter sslCertificate is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32718,10 +31057,9 @@
     if (sslCertificate == null) {
       throw core.ArgumentError('Parameter sslCertificate is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32791,13 +31129,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32901,25 +31236,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -32997,13 +31322,10 @@
     if (targetHttpProxy == null) {
       throw core.ArgumentError('Parameter targetHttpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33062,10 +31384,9 @@
     if (targetHttpProxy == null) {
       throw core.ArgumentError('Parameter targetHttpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33135,13 +31456,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33245,25 +31563,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33339,13 +31647,10 @@
     if (targetHttpProxy == null) {
       throw core.ArgumentError('Parameter targetHttpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33425,13 +31730,10 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33490,10 +31792,9 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33563,13 +31864,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33673,25 +31971,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33768,13 +32056,10 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33852,13 +32137,10 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33927,13 +32209,10 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -33992,10 +32271,9 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34054,13 +32332,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34164,25 +32439,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34252,13 +32517,10 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34326,13 +32588,10 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34398,10 +32657,9 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34462,10 +32720,9 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34559,25 +32816,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$project') + '/regions';
@@ -34685,28 +32932,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34775,13 +33010,10 @@
     if (reservation == null) {
       throw core.ArgumentError('Parameter reservation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34838,10 +33070,9 @@
     if (reservation == null) {
       throw core.ArgumentError('Parameter reservation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34904,15 +33135,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -34983,13 +33210,10 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35093,25 +33317,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35188,13 +33402,10 @@
     if (reservation == null) {
       throw core.ArgumentError('Parameter reservation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35260,10 +33471,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35327,10 +33537,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35444,28 +33653,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35534,13 +33731,10 @@
     if (resourcePolicy == null) {
       throw core.ArgumentError('Parameter resourcePolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35597,10 +33791,9 @@
     if (resourcePolicy == null) {
       throw core.ArgumentError('Parameter resourcePolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35663,15 +33856,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35740,13 +33929,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35850,25 +34036,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35932,10 +34108,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -35999,10 +34174,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36116,28 +34290,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36206,13 +34368,10 @@
     if (router == null) {
       throw core.ArgumentError('Parameter router is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36271,10 +34430,9 @@
     if (router == null) {
       throw core.ArgumentError('Parameter router is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36386,25 +34544,15 @@
     if (router == null) {
       throw core.ArgumentError('Parameter router is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36463,10 +34611,9 @@
     if (router == null) {
       throw core.ArgumentError('Parameter router is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36537,13 +34684,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36646,25 +34790,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36744,13 +34878,10 @@
     if (router == null) {
       throw core.ArgumentError('Parameter router is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36815,10 +34946,9 @@
     if (router == null) {
       throw core.ArgumentError('Parameter router is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36902,13 +35032,10 @@
     if (router == null) {
       throw core.ArgumentError('Parameter router is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -36979,13 +35106,10 @@
     if (route == null) {
       throw core.ArgumentError('Parameter route is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37035,10 +35159,9 @@
     if (route == null) {
       throw core.ArgumentError('Parameter route is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37098,13 +35221,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37198,25 +35318,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37274,10 +35384,9 @@
     if (securityPolicy == null) {
       throw core.ArgumentError('Parameter securityPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37341,13 +35450,10 @@
     if (securityPolicy == null) {
       throw core.ArgumentError('Parameter securityPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37395,10 +35501,9 @@
     if (securityPolicy == null) {
       throw core.ArgumentError('Parameter securityPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37451,13 +35556,10 @@
     if (securityPolicy == null) {
       throw core.ArgumentError('Parameter securityPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (priority != null) {
-      _queryParams['priority'] = ['${priority}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (priority != null) 'priority': ['${priority}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37519,13 +35621,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37619,25 +35718,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37734,25 +35823,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37822,13 +35901,10 @@
     if (securityPolicy == null) {
       throw core.ArgumentError('Parameter securityPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37885,13 +35961,10 @@
     if (securityPolicy == null) {
       throw core.ArgumentError('Parameter securityPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (priority != null) {
-      _queryParams['priority'] = ['${priority}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (priority != null) 'priority': ['${priority}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -37944,13 +36017,10 @@
     if (securityPolicy == null) {
       throw core.ArgumentError('Parameter securityPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (priority != null) {
-      _queryParams['priority'] = ['${priority}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (priority != null) 'priority': ['${priority}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38026,13 +36096,10 @@
     if (snapshot == null) {
       throw core.ArgumentError('Parameter snapshot is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38082,10 +36149,9 @@
     if (snapshot == null) {
       throw core.ArgumentError('Parameter snapshot is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38138,15 +36204,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38242,25 +36304,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38315,10 +36367,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38375,10 +36426,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38433,10 +36483,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38549,28 +36598,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38632,13 +36669,10 @@
     if (sslCertificate == null) {
       throw core.ArgumentError('Parameter sslCertificate is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38688,10 +36722,9 @@
     if (sslCertificate == null) {
       throw core.ArgumentError('Parameter sslCertificate is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38752,13 +36785,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38853,25 +36883,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38941,13 +36961,10 @@
     if (sslPolicy == null) {
       throw core.ArgumentError('Parameter sslPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -38994,10 +37011,9 @@
     if (sslPolicy == null) {
       throw core.ArgumentError('Parameter sslPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39058,13 +37074,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39159,25 +37172,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39272,25 +37275,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39356,13 +37349,10 @@
     if (sslPolicy == null) {
       throw core.ArgumentError('Parameter sslPolicy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39472,28 +37462,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39562,13 +37540,10 @@
     if (subnetwork == null) {
       throw core.ArgumentError('Parameter subnetwork is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39644,13 +37619,10 @@
     if (subnetwork == null) {
       throw core.ArgumentError('Parameter subnetwork is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39711,10 +37683,9 @@
     if (subnetwork == null) {
       throw core.ArgumentError('Parameter subnetwork is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39777,15 +37748,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39855,13 +37822,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -39964,25 +37928,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40078,25 +38032,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40184,16 +38128,12 @@
     if (subnetwork == null) {
       throw core.ArgumentError('Parameter subnetwork is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (drainTimeoutSeconds != null) {
-      _queryParams['drainTimeoutSeconds'] = ['${drainTimeoutSeconds}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (drainTimeoutSeconds != null)
+        'drainTimeoutSeconds': ['${drainTimeoutSeconds}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40258,10 +38198,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40340,13 +38279,10 @@
     if (subnetwork == null) {
       throw core.ArgumentError('Parameter subnetwork is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40410,10 +38346,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40486,13 +38421,10 @@
     if (targetGrpcProxy == null) {
       throw core.ArgumentError('Parameter targetGrpcProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40540,10 +38472,9 @@
     if (targetGrpcProxy == null) {
       throw core.ArgumentError('Parameter targetGrpcProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40604,13 +38535,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40704,25 +38632,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40793,13 +38711,10 @@
     if (targetGrpcProxy == null) {
       throw core.ArgumentError('Parameter targetGrpcProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40910,28 +38825,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -40993,13 +38896,10 @@
     if (targetHttpProxy == null) {
       throw core.ArgumentError('Parameter targetHttpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41049,10 +38949,9 @@
     if (targetHttpProxy == null) {
       throw core.ArgumentError('Parameter targetHttpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41113,13 +39012,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41214,25 +39110,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41303,13 +39189,10 @@
     if (targetHttpProxy == null) {
       throw core.ArgumentError('Parameter targetHttpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41377,13 +39260,10 @@
     if (targetHttpProxy == null) {
       throw core.ArgumentError('Parameter targetHttpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41495,28 +39375,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41578,13 +39446,10 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41634,10 +39499,9 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41698,13 +39562,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41799,25 +39660,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41888,13 +39739,10 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -41961,13 +39809,10 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42037,13 +39882,10 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42117,13 +39959,10 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42193,13 +40032,10 @@
     if (targetHttpsProxy == null) {
       throw core.ArgumentError('Parameter targetHttpsProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42310,28 +40146,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42400,13 +40224,10 @@
     if (targetInstance == null) {
       throw core.ArgumentError('Parameter targetInstance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42465,10 +40286,9 @@
     if (targetInstance == null) {
       throw core.ArgumentError('Parameter targetInstance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42538,13 +40358,10 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42648,25 +40465,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42748,13 +40555,10 @@
     if (targetPool == null) {
       throw core.ArgumentError('Parameter targetPool is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42832,13 +40636,10 @@
     if (targetPool == null) {
       throw core.ArgumentError('Parameter targetPool is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -42945,28 +40746,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43035,13 +40824,10 @@
     if (targetPool == null) {
       throw core.ArgumentError('Parameter targetPool is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43100,10 +40886,9 @@
     if (targetPool == null) {
       throw core.ArgumentError('Parameter targetPool is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43168,10 +40953,9 @@
     if (targetPool == null) {
       throw core.ArgumentError('Parameter targetPool is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43243,13 +41027,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43353,25 +41134,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43447,13 +41218,10 @@
     if (targetPool == null) {
       throw core.ArgumentError('Parameter targetPool is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43531,13 +41299,10 @@
     if (targetPool == null) {
       throw core.ArgumentError('Parameter targetPool is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43618,16 +41383,11 @@
     if (targetPool == null) {
       throw core.ArgumentError('Parameter targetPool is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (failoverRatio != null) {
-      _queryParams['failoverRatio'] = ['${failoverRatio}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (failoverRatio != null) 'failoverRatio': ['${failoverRatio}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43699,13 +41459,10 @@
     if (targetSslProxy == null) {
       throw core.ArgumentError('Parameter targetSslProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43755,10 +41512,9 @@
     if (targetSslProxy == null) {
       throw core.ArgumentError('Parameter targetSslProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43819,13 +41575,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -43920,25 +41673,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44006,13 +41749,10 @@
     if (targetSslProxy == null) {
       throw core.ArgumentError('Parameter targetSslProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44082,13 +41822,10 @@
     if (targetSslProxy == null) {
       throw core.ArgumentError('Parameter targetSslProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44158,13 +41895,10 @@
     if (targetSslProxy == null) {
       throw core.ArgumentError('Parameter targetSslProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44236,13 +41970,10 @@
     if (targetSslProxy == null) {
       throw core.ArgumentError('Parameter targetSslProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44312,13 +42043,10 @@
     if (targetTcpProxy == null) {
       throw core.ArgumentError('Parameter targetTcpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44368,10 +42096,9 @@
     if (targetTcpProxy == null) {
       throw core.ArgumentError('Parameter targetTcpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44432,13 +42159,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44533,25 +42257,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44619,13 +42333,10 @@
     if (targetTcpProxy == null) {
       throw core.ArgumentError('Parameter targetTcpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44695,13 +42406,10 @@
     if (targetTcpProxy == null) {
       throw core.ArgumentError('Parameter targetTcpProxy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44812,28 +42520,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44902,13 +42598,10 @@
     if (targetVpnGateway == null) {
       throw core.ArgumentError('Parameter targetVpnGateway is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -44967,10 +42660,9 @@
     if (targetVpnGateway == null) {
       throw core.ArgumentError('Parameter targetVpnGateway is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45040,13 +42732,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45150,25 +42839,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45280,28 +42959,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45363,13 +43030,10 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45419,10 +43083,9 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45482,13 +43145,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45559,13 +43219,10 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45661,25 +43318,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45750,13 +43397,10 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45825,13 +43469,10 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -45888,10 +43529,9 @@
     if (urlMap == null) {
       throw core.ArgumentError('Parameter urlMap is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46003,28 +43643,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46093,13 +43721,10 @@
     if (vpnGateway == null) {
       throw core.ArgumentError('Parameter vpnGateway is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46158,10 +43783,9 @@
     if (vpnGateway == null) {
       throw core.ArgumentError('Parameter vpnGateway is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46219,10 +43843,9 @@
     if (vpnGateway == null) {
       throw core.ArgumentError('Parameter vpnGateway is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46293,13 +43916,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46403,25 +44023,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46499,13 +44109,10 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46569,10 +44176,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46686,28 +44292,16 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeAllScopes != null) {
-      _queryParams['includeAllScopes'] = ['${includeAllScopes}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeAllScopes != null) 'includeAllScopes': ['${includeAllScopes}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46776,13 +44370,10 @@
     if (vpnTunnel == null) {
       throw core.ArgumentError('Parameter vpnTunnel is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46841,10 +44432,9 @@
     if (vpnTunnel == null) {
       throw core.ArgumentError('Parameter vpnTunnel is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -46913,13 +44503,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -47023,25 +44610,15 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -47102,10 +44679,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -47162,10 +44738,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -47269,25 +44844,15 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -47358,10 +44923,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -47420,10 +44984,9 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -47517,25 +45080,15 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (returnPartialSuccess != null) {
-      _queryParams['returnPartialSuccess'] = ['${returnPartialSuccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (returnPartialSuccess != null)
+        'returnPartialSuccess': ['${returnPartialSuccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$project') + '/zones';
diff --git a/generated/googleapis/lib/container/v1.dart b/generated/googleapis/lib/container/v1.dart
index 1bb7f4d..b9831ad 100644
--- a/generated/googleapis/lib/container/v1.dart
+++ b/generated/googleapis/lib/container/v1.dart
@@ -136,19 +136,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -210,16 +203,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (zone != null) {
-      _queryParams['zone'] = [zone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projectId != null) 'projectId': [projectId],
+      if (zone != null) 'zone': [zone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -278,10 +266,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -335,10 +322,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/clusters';
@@ -399,19 +385,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clusterId != null) {
-      _queryParams['clusterId'] = [clusterId];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (zone != null) {
-      _queryParams['zone'] = [zone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clusterId != null) 'clusterId': [clusterId],
+      if (projectId != null) 'projectId': [projectId],
+      if (zone != null) 'zone': [zone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -464,19 +443,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clusterId != null) {
-      _queryParams['clusterId'] = [clusterId];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (zone != null) {
-      _queryParams['zone'] = [zone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clusterId != null) 'clusterId': [clusterId],
+      if (projectId != null) 'projectId': [projectId],
+      if (zone != null) 'zone': [zone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -518,10 +490,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jwks';
@@ -573,16 +544,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (zone != null) {
-      _queryParams['zone'] = [zone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projectId != null) 'projectId': [projectId],
+      if (zone != null) 'zone': [zone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/clusters';
@@ -628,10 +594,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':setAddons';
@@ -677,10 +642,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -731,10 +695,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -781,10 +744,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':setLogging';
@@ -830,10 +792,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -882,10 +843,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -932,10 +892,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -982,10 +941,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1032,10 +990,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1082,10 +1039,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1131,10 +1087,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1178,10 +1133,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1235,10 +1189,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/nodePools';
@@ -1298,22 +1251,13 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clusterId != null) {
-      _queryParams['clusterId'] = [clusterId];
-    }
-    if (nodePoolId != null) {
-      _queryParams['nodePoolId'] = [nodePoolId];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (zone != null) {
-      _queryParams['zone'] = [zone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clusterId != null) 'clusterId': [clusterId],
+      if (nodePoolId != null) 'nodePoolId': [nodePoolId],
+      if (projectId != null) 'projectId': [projectId],
+      if (zone != null) 'zone': [zone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1371,22 +1315,13 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clusterId != null) {
-      _queryParams['clusterId'] = [clusterId];
-    }
-    if (nodePoolId != null) {
-      _queryParams['nodePoolId'] = [nodePoolId];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (zone != null) {
-      _queryParams['zone'] = [zone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clusterId != null) 'clusterId': [clusterId],
+      if (nodePoolId != null) 'nodePoolId': [nodePoolId],
+      if (projectId != null) 'projectId': [projectId],
+      if (zone != null) 'zone': [zone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1440,19 +1375,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clusterId != null) {
-      _queryParams['clusterId'] = [clusterId];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (zone != null) {
-      _queryParams['zone'] = [zone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clusterId != null) 'clusterId': [clusterId],
+      if (projectId != null) 'projectId': [projectId],
+      if (zone != null) 'zone': [zone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/nodePools';
@@ -1500,10 +1428,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':rollback';
@@ -1549,10 +1476,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1599,10 +1525,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1652,10 +1577,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':setSize';
@@ -1701,10 +1625,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1756,10 +1679,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1813,10 +1735,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1872,19 +1793,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (operationId != null) {
-      _queryParams['operationId'] = [operationId];
-    }
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (zone != null) {
-      _queryParams['zone'] = [zone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (operationId != null) 'operationId': [operationId],
+      if (projectId != null) 'projectId': [projectId],
+      if (zone != null) 'zone': [zone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1933,16 +1847,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (zone != null) {
-      _queryParams['zone'] = [zone];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projectId != null) 'projectId': [projectId],
+      if (zone != null) 'zone': [zone],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2006,13 +1915,10 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2085,10 +1991,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2153,10 +2058,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2223,10 +2127,9 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2294,13 +2197,10 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2362,13 +2262,10 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2431,10 +2328,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2493,13 +2389,10 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2566,10 +2459,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2634,10 +2526,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2702,10 +2593,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2770,10 +2660,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2838,10 +2727,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2903,10 +2791,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2974,10 +2861,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3042,10 +2928,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3110,10 +2995,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3178,10 +3062,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3259,10 +3142,9 @@
     if (nodePoolId == null) {
       throw core.ArgumentError('Parameter nodePoolId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3329,10 +3211,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3404,13 +3285,10 @@
     if (nodePoolId == null) {
       throw core.ArgumentError('Parameter nodePoolId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3482,13 +3360,10 @@
     if (nodePoolId == null) {
       throw core.ArgumentError('Parameter nodePoolId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3553,13 +3428,10 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3633,10 +3505,9 @@
     if (nodePoolId == null) {
       throw core.ArgumentError('Parameter nodePoolId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3710,10 +3581,9 @@
     if (nodePoolId == null) {
       throw core.ArgumentError('Parameter nodePoolId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3790,10 +3660,9 @@
     if (nodePoolId == null) {
       throw core.ArgumentError('Parameter nodePoolId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3867,10 +3736,9 @@
     if (nodePoolId == null) {
       throw core.ArgumentError('Parameter nodePoolId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3944,10 +3812,9 @@
     if (operationId == null) {
       throw core.ArgumentError('Parameter operationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -4012,13 +3879,10 @@
     if (operationId == null) {
       throw core.ArgumentError('Parameter operationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -4074,13 +3938,10 @@
     if (zone == null) {
       throw core.ArgumentError('Parameter zone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
diff --git a/generated/googleapis/lib/content/v2_1.dart b/generated/googleapis/lib/content/v2_1.dart
index c9a0ed6..2a511db 100644
--- a/generated/googleapis/lib/content/v2_1.dart
+++ b/generated/googleapis/lib/content/v2_1.dart
@@ -148,10 +148,9 @@
   async.Future<AccountsAuthInfoResponse> authinfo({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/accounts/authinfo';
 
@@ -200,13 +199,10 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (overwrite != null) {
-      _queryParams['overwrite'] = ['${overwrite}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (overwrite != null) 'overwrite': ['${overwrite}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -246,10 +242,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/accounts/batch';
 
@@ -295,13 +290,10 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -354,13 +346,10 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -404,10 +393,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -459,10 +447,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -522,22 +509,13 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (label != null) {
-      _queryParams['label'] = [label];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (label != null) 'label': [label],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -590,16 +568,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -654,10 +627,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -708,10 +680,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -763,10 +734,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -809,10 +779,9 @@
     if (labelId == null) {
       throw core.ArgumentError('Parameter labelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -862,16 +831,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -920,10 +884,9 @@
     if (labelId == null) {
       throw core.ArgumentError('Parameter labelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -976,10 +939,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1024,10 +986,9 @@
     if (carrierAccountId == null) {
       throw core.ArgumentError('Parameter carrierAccountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1066,10 +1027,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1120,10 +1080,9 @@
     if (carrierAccountId == null) {
       throw core.ArgumentError('Parameter carrierAccountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1168,10 +1127,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/accountstatuses/batch';
 
@@ -1222,13 +1180,10 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (destinations != null) {
-      _queryParams['destinations'] = destinations;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (destinations != null) 'destinations': destinations,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1279,19 +1234,12 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (destinations != null) {
-      _queryParams['destinations'] = destinations;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (destinations != null) 'destinations': destinations,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1335,10 +1283,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/accounttax/batch';
 
@@ -1384,10 +1331,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1435,16 +1381,11 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1498,10 +1439,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1557,10 +1497,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1605,10 +1544,9 @@
     if (collectionId == null) {
       throw core.ArgumentError('Parameter collectionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1653,10 +1591,9 @@
     if (collectionId == null) {
       throw core.ArgumentError('Parameter collectionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1709,16 +1646,11 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1770,10 +1702,9 @@
     if (collectionId == null) {
       throw core.ArgumentError('Parameter collectionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1823,16 +1754,11 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -1885,10 +1811,9 @@
     if (cssDomainId == null) {
       throw core.ArgumentError('Parameter cssDomainId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$cssGroupId') +
@@ -1938,16 +1863,11 @@
     if (cssGroupId == null) {
       throw core.ArgumentError('Parameter cssGroupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$cssGroupId') +
@@ -1996,10 +1916,9 @@
     if (cssDomainId == null) {
       throw core.ArgumentError('Parameter cssDomainId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$cssGroupId') +
@@ -2045,10 +1964,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/datafeeds/batch';
 
@@ -2090,10 +2008,9 @@
     if (datafeedId == null) {
       throw core.ArgumentError('Parameter datafeedId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2141,10 +2058,9 @@
     if (datafeedId == null) {
       throw core.ArgumentError('Parameter datafeedId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2191,10 +2107,9 @@
     if (datafeedId == null) {
       throw core.ArgumentError('Parameter datafeedId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2238,10 +2153,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2287,16 +2201,11 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2348,10 +2257,9 @@
     if (datafeedId == null) {
       throw core.ArgumentError('Parameter datafeedId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2395,10 +2303,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/datafeedstatuses/batch';
 
@@ -2454,16 +2361,11 @@
     if (datafeedId == null) {
       throw core.ArgumentError('Parameter datafeedId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (country != null) {
-      _queryParams['country'] = [country];
-    }
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (country != null) 'country': [country],
+      if (language != null) 'language': [language],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2510,16 +2412,11 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2563,10 +2460,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/liasettings/batch';
 
@@ -2612,10 +2508,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2664,10 +2559,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2716,16 +2610,11 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2758,10 +2647,9 @@
   async.Future<LiasettingsListPosDataProvidersResponse> listposdataproviders({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/liasettings/posdataproviders';
 
@@ -2808,14 +2696,13 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (gmbEmail == null) {
       throw core.ArgumentError('Parameter gmbEmail is required.');
     }
-    _queryParams['gmbEmail'] = [gmbEmail];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'gmbEmail': [gmbEmail],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2871,10 +2758,9 @@
     if (country == null) {
       throw core.ArgumentError('Parameter country is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -2937,26 +2823,25 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (country == null) {
       throw core.ArgumentError('Parameter country is required.');
     }
-    _queryParams['country'] = [country];
     if (language == null) {
       throw core.ArgumentError('Parameter language is required.');
     }
-    _queryParams['language'] = [language];
     if (contactName == null) {
       throw core.ArgumentError('Parameter contactName is required.');
     }
-    _queryParams['contactName'] = [contactName];
     if (contactEmail == null) {
       throw core.ArgumentError('Parameter contactEmail is required.');
     }
-    _queryParams['contactEmail'] = [contactEmail];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'country': [country],
+      'language': [language],
+      'contactName': [contactName],
+      'contactEmail': [contactEmail],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3015,20 +2900,16 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (country == null) {
       throw core.ArgumentError('Parameter country is required.');
     }
-    _queryParams['country'] = [country];
-    if (posDataProviderId != null) {
-      _queryParams['posDataProviderId'] = [posDataProviderId];
-    }
-    if (posExternalAccountId != null) {
-      _queryParams['posExternalAccountId'] = [posExternalAccountId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'country': [country],
+      if (posDataProviderId != null) 'posDataProviderId': [posDataProviderId],
+      if (posExternalAccountId != null)
+        'posExternalAccountId': [posExternalAccountId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3084,10 +2965,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3133,10 +3013,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/localinventory/batch';
 
@@ -3186,10 +3065,9 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3249,10 +3127,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3310,10 +3187,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3376,22 +3252,15 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (disbursementEndDate != null) {
-      _queryParams['disbursementEndDate'] = [disbursementEndDate];
-    }
-    if (disbursementStartDate != null) {
-      _queryParams['disbursementStartDate'] = [disbursementStartDate];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (disbursementEndDate != null)
+        'disbursementEndDate': [disbursementEndDate],
+      if (disbursementStartDate != null)
+        'disbursementStartDate': [disbursementStartDate],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3453,22 +3322,15 @@
     if (disbursementId == null) {
       throw core.ArgumentError('Parameter disbursementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (transactionEndDate != null) {
-      _queryParams['transactionEndDate'] = [transactionEndDate];
-    }
-    if (transactionStartDate != null) {
-      _queryParams['transactionStartDate'] = [transactionStartDate];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (transactionEndDate != null)
+        'transactionEndDate': [transactionEndDate],
+      if (transactionStartDate != null)
+        'transactionStartDate': [transactionStartDate],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3526,10 +3388,9 @@
     if (returnId == null) {
       throw core.ArgumentError('Parameter returnId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3576,10 +3437,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3625,10 +3485,9 @@
     if (returnId == null) {
       throw core.ArgumentError('Parameter returnId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3732,43 +3591,21 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acknowledged != null) {
-      _queryParams['acknowledged'] = ['${acknowledged}'];
-    }
-    if (createdEndDate != null) {
-      _queryParams['createdEndDate'] = [createdEndDate];
-    }
-    if (createdStartDate != null) {
-      _queryParams['createdStartDate'] = [createdStartDate];
-    }
-    if (googleOrderIds != null) {
-      _queryParams['googleOrderIds'] = googleOrderIds;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (shipmentStates != null) {
-      _queryParams['shipmentStates'] = shipmentStates;
-    }
-    if (shipmentStatus != null) {
-      _queryParams['shipmentStatus'] = shipmentStatus;
-    }
-    if (shipmentTrackingNumbers != null) {
-      _queryParams['shipmentTrackingNumbers'] = shipmentTrackingNumbers;
-    }
-    if (shipmentTypes != null) {
-      _queryParams['shipmentTypes'] = shipmentTypes;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acknowledged != null) 'acknowledged': ['${acknowledged}'],
+      if (createdEndDate != null) 'createdEndDate': [createdEndDate],
+      if (createdStartDate != null) 'createdStartDate': [createdStartDate],
+      if (googleOrderIds != null) 'googleOrderIds': googleOrderIds,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (shipmentStates != null) 'shipmentStates': shipmentStates,
+      if (shipmentStatus != null) 'shipmentStatus': shipmentStatus,
+      if (shipmentTrackingNumbers != null)
+        'shipmentTrackingNumbers': shipmentTrackingNumbers,
+      if (shipmentTypes != null) 'shipmentTypes': shipmentTypes,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3818,10 +3655,9 @@
     if (returnId == null) {
       throw core.ArgumentError('Parameter returnId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3880,10 +3716,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3933,10 +3768,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -3988,10 +3822,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4044,10 +3877,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4103,10 +3935,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4155,10 +3986,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4211,10 +4041,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4262,10 +4091,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4310,10 +4138,9 @@
     if (merchantOrderId == null) {
       throw core.ArgumentError('Parameter merchantOrderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4372,13 +4199,10 @@
     if (templateName == null) {
       throw core.ArgumentError('Parameter templateName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (country != null) {
-      _queryParams['country'] = [country];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (country != null) 'country': [country],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4439,10 +4263,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4518,31 +4341,16 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acknowledged != null) {
-      _queryParams['acknowledged'] = ['${acknowledged}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (placedDateEnd != null) {
-      _queryParams['placedDateEnd'] = [placedDateEnd];
-    }
-    if (placedDateStart != null) {
-      _queryParams['placedDateStart'] = [placedDateStart];
-    }
-    if (statuses != null) {
-      _queryParams['statuses'] = statuses;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acknowledged != null) 'acknowledged': ['${acknowledged}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (placedDateEnd != null) 'placedDateEnd': [placedDateEnd],
+      if (placedDateStart != null) 'placedDateStart': [placedDateStart],
+      if (statuses != null) 'statuses': statuses,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4592,10 +4400,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4648,10 +4455,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4704,10 +4510,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4767,10 +4572,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4828,10 +4632,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4884,10 +4687,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4941,10 +4743,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -4997,10 +4798,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5053,10 +4853,9 @@
     if (orderId == null) {
       throw core.ArgumentError('Parameter orderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5110,10 +4909,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5157,10 +4955,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/pos/batch';
 
@@ -5207,10 +5004,9 @@
     if (storeCode == null) {
       throw core.ArgumentError('Parameter storeCode is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5262,10 +5058,9 @@
     if (storeCode == null) {
       throw core.ArgumentError('Parameter storeCode is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5316,10 +5111,9 @@
     if (targetMerchantId == null) {
       throw core.ArgumentError('Parameter targetMerchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5370,10 +5164,9 @@
     if (targetMerchantId == null) {
       throw core.ArgumentError('Parameter targetMerchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5420,10 +5213,9 @@
     if (targetMerchantId == null) {
       throw core.ArgumentError('Parameter targetMerchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5474,10 +5266,9 @@
     if (targetMerchantId == null) {
       throw core.ArgumentError('Parameter targetMerchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5523,10 +5314,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/products/batch';
 
@@ -5571,13 +5361,10 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (feedId != null) {
-      _queryParams['feedId'] = [feedId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (feedId != null) 'feedId': [feedId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5622,10 +5409,9 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5675,13 +5461,10 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (feedId != null) {
-      _queryParams['feedId'] = [feedId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (feedId != null) 'feedId': [feedId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5730,16 +5513,11 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5785,10 +5563,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/productstatuses/batch';
 
@@ -5836,13 +5613,10 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (destinations != null) {
-      _queryParams['destinations'] = destinations;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (destinations != null) 'destinations': destinations,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5893,19 +5667,12 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (destinations != null) {
-      _queryParams['destinations'] = destinations;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (destinations != null) 'destinations': destinations,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -5985,25 +5752,14 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endDate != null) {
-      _queryParams['endDate'] = [endDate];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (ruleId != null) {
-      _queryParams['ruleId'] = [ruleId];
-    }
-    if (startDate != null) {
-      _queryParams['startDate'] = [startDate];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endDate != null) 'endDate': [endDate],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (ruleId != null) 'ruleId': [ruleId],
+      if (startDate != null) 'startDate': [startDate],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6051,10 +5807,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6099,10 +5854,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6147,10 +5901,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/regionalinventory/batch';
 
@@ -6204,10 +5957,9 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6263,13 +6015,10 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (regionId != null) {
-      _queryParams['regionId'] = [regionId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (regionId != null) 'regionId': [regionId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6312,10 +6061,9 @@
     if (regionId == null) {
       throw core.ArgumentError('Parameter regionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6360,10 +6108,9 @@
     if (regionId == null) {
       throw core.ArgumentError('Parameter regionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6414,16 +6161,11 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6476,13 +6218,10 @@
     if (regionId == null) {
       throw core.ArgumentError('Parameter regionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6539,13 +6278,10 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ruleId != null) {
-      _queryParams['ruleId'] = [ruleId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ruleId != null) 'ruleId': [ruleId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6589,10 +6325,9 @@
     if (ruleId == null) {
       throw core.ArgumentError('Parameter ruleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6637,10 +6372,9 @@
     if (ruleId == null) {
       throw core.ArgumentError('Parameter ruleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6700,22 +6434,13 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (countryCode != null) {
-      _queryParams['countryCode'] = [countryCode];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (countryCode != null) 'countryCode': [countryCode],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6770,10 +6495,9 @@
     if (ruleId == null) {
       throw core.ArgumentError('Parameter ruleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6848,22 +6572,13 @@
     if (ruleId == null) {
       throw core.ArgumentError('Parameter ruleId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endDate != null) {
-      _queryParams['endDate'] = [endDate];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startDate != null) {
-      _queryParams['startDate'] = [startDate];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endDate != null) 'endDate': [endDate],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startDate != null) 'startDate': [startDate],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -6908,10 +6623,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/returnaddress/batch';
 
@@ -6953,10 +6667,9 @@
     if (returnAddressId == null) {
       throw core.ArgumentError('Parameter returnAddressId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7000,10 +6713,9 @@
     if (returnAddressId == null) {
       throw core.ArgumentError('Parameter returnAddressId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7047,10 +6759,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7100,19 +6811,12 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (country != null) {
-      _queryParams['country'] = [country];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (country != null) 'country': [country],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7155,10 +6859,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/returnpolicy/batch';
 
@@ -7200,10 +6903,9 @@
     if (returnPolicyId == null) {
       throw core.ArgumentError('Parameter returnPolicyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7247,10 +6949,9 @@
     if (returnPolicyId == null) {
       throw core.ArgumentError('Parameter returnPolicyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7294,10 +6995,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7336,10 +7036,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7389,10 +7088,9 @@
     if (settlementId == null) {
       throw core.ArgumentError('Parameter settlementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7447,22 +7145,13 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (transferEndDate != null) {
-      _queryParams['transferEndDate'] = [transferEndDate];
-    }
-    if (transferStartDate != null) {
-      _queryParams['transferStartDate'] = [transferStartDate];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (transferEndDate != null) 'transferEndDate': [transferEndDate],
+      if (transferStartDate != null) 'transferStartDate': [transferStartDate],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7525,19 +7214,12 @@
     if (settlementId == null) {
       throw core.ArgumentError('Parameter settlementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (transactionIds != null) {
-      _queryParams['transactionIds'] = transactionIds;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (transactionIds != null) 'transactionIds': transactionIds,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7583,10 +7265,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'content/v2.1/shippingsettings/batch';
 
@@ -7632,10 +7313,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7676,10 +7356,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7719,10 +7398,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7762,10 +7440,9 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7812,16 +7489,11 @@
     if (merchantId == null) {
       throw core.ArgumentError('Parameter merchantId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
@@ -7875,10 +7547,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'content/v2.1/' +
         commons.Escaper.ecapeVariable('$merchantId') +
diff --git a/generated/googleapis/lib/customsearch/v1.dart b/generated/googleapis/lib/customsearch/v1.dart
index 5f103a0..2c44372 100644
--- a/generated/googleapis/lib/customsearch/v1.dart
+++ b/generated/googleapis/lib/customsearch/v1.dart
@@ -312,103 +312,40 @@
     core.int start,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (c2coff != null) {
-      _queryParams['c2coff'] = [c2coff];
-    }
-    if (cr != null) {
-      _queryParams['cr'] = [cr];
-    }
-    if (cx != null) {
-      _queryParams['cx'] = [cx];
-    }
-    if (dateRestrict != null) {
-      _queryParams['dateRestrict'] = [dateRestrict];
-    }
-    if (exactTerms != null) {
-      _queryParams['exactTerms'] = [exactTerms];
-    }
-    if (excludeTerms != null) {
-      _queryParams['excludeTerms'] = [excludeTerms];
-    }
-    if (fileType != null) {
-      _queryParams['fileType'] = [fileType];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (gl != null) {
-      _queryParams['gl'] = [gl];
-    }
-    if (googlehost != null) {
-      _queryParams['googlehost'] = [googlehost];
-    }
-    if (highRange != null) {
-      _queryParams['highRange'] = [highRange];
-    }
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if (hq != null) {
-      _queryParams['hq'] = [hq];
-    }
-    if (imgColorType != null) {
-      _queryParams['imgColorType'] = [imgColorType];
-    }
-    if (imgDominantColor != null) {
-      _queryParams['imgDominantColor'] = [imgDominantColor];
-    }
-    if (imgSize != null) {
-      _queryParams['imgSize'] = [imgSize];
-    }
-    if (imgType != null) {
-      _queryParams['imgType'] = [imgType];
-    }
-    if (linkSite != null) {
-      _queryParams['linkSite'] = [linkSite];
-    }
-    if (lowRange != null) {
-      _queryParams['lowRange'] = [lowRange];
-    }
-    if (lr != null) {
-      _queryParams['lr'] = [lr];
-    }
-    if (num != null) {
-      _queryParams['num'] = ['${num}'];
-    }
-    if (orTerms != null) {
-      _queryParams['orTerms'] = [orTerms];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (relatedSite != null) {
-      _queryParams['relatedSite'] = [relatedSite];
-    }
-    if (rights != null) {
-      _queryParams['rights'] = [rights];
-    }
-    if (safe != null) {
-      _queryParams['safe'] = [safe];
-    }
-    if (searchType != null) {
-      _queryParams['searchType'] = [searchType];
-    }
-    if (siteSearch != null) {
-      _queryParams['siteSearch'] = [siteSearch];
-    }
-    if (siteSearchFilter != null) {
-      _queryParams['siteSearchFilter'] = [siteSearchFilter];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if (start != null) {
-      _queryParams['start'] = ['${start}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (c2coff != null) 'c2coff': [c2coff],
+      if (cr != null) 'cr': [cr],
+      if (cx != null) 'cx': [cx],
+      if (dateRestrict != null) 'dateRestrict': [dateRestrict],
+      if (exactTerms != null) 'exactTerms': [exactTerms],
+      if (excludeTerms != null) 'excludeTerms': [excludeTerms],
+      if (fileType != null) 'fileType': [fileType],
+      if (filter != null) 'filter': [filter],
+      if (gl != null) 'gl': [gl],
+      if (googlehost != null) 'googlehost': [googlehost],
+      if (highRange != null) 'highRange': [highRange],
+      if (hl != null) 'hl': [hl],
+      if (hq != null) 'hq': [hq],
+      if (imgColorType != null) 'imgColorType': [imgColorType],
+      if (imgDominantColor != null) 'imgDominantColor': [imgDominantColor],
+      if (imgSize != null) 'imgSize': [imgSize],
+      if (imgType != null) 'imgType': [imgType],
+      if (linkSite != null) 'linkSite': [linkSite],
+      if (lowRange != null) 'lowRange': [lowRange],
+      if (lr != null) 'lr': [lr],
+      if (num != null) 'num': ['${num}'],
+      if (orTerms != null) 'orTerms': [orTerms],
+      if (q != null) 'q': [q],
+      if (relatedSite != null) 'relatedSite': [relatedSite],
+      if (rights != null) 'rights': [rights],
+      if (safe != null) 'safe': [safe],
+      if (searchType != null) 'searchType': [searchType],
+      if (siteSearch != null) 'siteSearch': [siteSearch],
+      if (siteSearchFilter != null) 'siteSearchFilter': [siteSearchFilter],
+      if (sort != null) 'sort': [sort],
+      if (start != null) 'start': ['${start}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'customsearch/v1';
 
@@ -681,103 +618,40 @@
     core.int start,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (c2coff != null) {
-      _queryParams['c2coff'] = [c2coff];
-    }
-    if (cr != null) {
-      _queryParams['cr'] = [cr];
-    }
-    if (cx != null) {
-      _queryParams['cx'] = [cx];
-    }
-    if (dateRestrict != null) {
-      _queryParams['dateRestrict'] = [dateRestrict];
-    }
-    if (exactTerms != null) {
-      _queryParams['exactTerms'] = [exactTerms];
-    }
-    if (excludeTerms != null) {
-      _queryParams['excludeTerms'] = [excludeTerms];
-    }
-    if (fileType != null) {
-      _queryParams['fileType'] = [fileType];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (gl != null) {
-      _queryParams['gl'] = [gl];
-    }
-    if (googlehost != null) {
-      _queryParams['googlehost'] = [googlehost];
-    }
-    if (highRange != null) {
-      _queryParams['highRange'] = [highRange];
-    }
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if (hq != null) {
-      _queryParams['hq'] = [hq];
-    }
-    if (imgColorType != null) {
-      _queryParams['imgColorType'] = [imgColorType];
-    }
-    if (imgDominantColor != null) {
-      _queryParams['imgDominantColor'] = [imgDominantColor];
-    }
-    if (imgSize != null) {
-      _queryParams['imgSize'] = [imgSize];
-    }
-    if (imgType != null) {
-      _queryParams['imgType'] = [imgType];
-    }
-    if (linkSite != null) {
-      _queryParams['linkSite'] = [linkSite];
-    }
-    if (lowRange != null) {
-      _queryParams['lowRange'] = [lowRange];
-    }
-    if (lr != null) {
-      _queryParams['lr'] = [lr];
-    }
-    if (num != null) {
-      _queryParams['num'] = ['${num}'];
-    }
-    if (orTerms != null) {
-      _queryParams['orTerms'] = [orTerms];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (relatedSite != null) {
-      _queryParams['relatedSite'] = [relatedSite];
-    }
-    if (rights != null) {
-      _queryParams['rights'] = [rights];
-    }
-    if (safe != null) {
-      _queryParams['safe'] = [safe];
-    }
-    if (searchType != null) {
-      _queryParams['searchType'] = [searchType];
-    }
-    if (siteSearch != null) {
-      _queryParams['siteSearch'] = [siteSearch];
-    }
-    if (siteSearchFilter != null) {
-      _queryParams['siteSearchFilter'] = [siteSearchFilter];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if (start != null) {
-      _queryParams['start'] = ['${start}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (c2coff != null) 'c2coff': [c2coff],
+      if (cr != null) 'cr': [cr],
+      if (cx != null) 'cx': [cx],
+      if (dateRestrict != null) 'dateRestrict': [dateRestrict],
+      if (exactTerms != null) 'exactTerms': [exactTerms],
+      if (excludeTerms != null) 'excludeTerms': [excludeTerms],
+      if (fileType != null) 'fileType': [fileType],
+      if (filter != null) 'filter': [filter],
+      if (gl != null) 'gl': [gl],
+      if (googlehost != null) 'googlehost': [googlehost],
+      if (highRange != null) 'highRange': [highRange],
+      if (hl != null) 'hl': [hl],
+      if (hq != null) 'hq': [hq],
+      if (imgColorType != null) 'imgColorType': [imgColorType],
+      if (imgDominantColor != null) 'imgDominantColor': [imgDominantColor],
+      if (imgSize != null) 'imgSize': [imgSize],
+      if (imgType != null) 'imgType': [imgType],
+      if (linkSite != null) 'linkSite': [linkSite],
+      if (lowRange != null) 'lowRange': [lowRange],
+      if (lr != null) 'lr': [lr],
+      if (num != null) 'num': ['${num}'],
+      if (orTerms != null) 'orTerms': [orTerms],
+      if (q != null) 'q': [q],
+      if (relatedSite != null) 'relatedSite': [relatedSite],
+      if (rights != null) 'rights': [rights],
+      if (safe != null) 'safe': [safe],
+      if (searchType != null) 'searchType': [searchType],
+      if (siteSearch != null) 'siteSearch': [siteSearch],
+      if (siteSearchFilter != null) 'siteSearchFilter': [siteSearchFilter],
+      if (sort != null) 'sort': [sort],
+      if (start != null) 'start': ['${start}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'customsearch/v1/siterestrict';
 
diff --git a/generated/googleapis/lib/datafusion/v1.dart b/generated/googleapis/lib/datafusion/v1.dart
index da14feb..153ea95 100644
--- a/generated/googleapis/lib/datafusion/v1.dart
+++ b/generated/googleapis/lib/datafusion/v1.dart
@@ -116,10 +116,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -168,24 +167,14 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeUnrevealedLocations != null) {
-      _queryParams['includeUnrevealedLocations'] = [
-        '${includeUnrevealedLocations}'
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeUnrevealedLocations != null)
+        'includeUnrevealedLocations': ['${includeUnrevealedLocations}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -239,13 +228,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (instanceId != null) {
-      _queryParams['instanceId'] = [instanceId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (instanceId != null) 'instanceId': [instanceId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -285,10 +271,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -326,10 +311,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -380,15 +364,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -443,22 +423,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -511,13 +482,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -563,10 +531,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':restart';
@@ -615,10 +582,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -670,10 +636,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -735,10 +700,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -781,10 +745,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -824,10 +787,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -881,19 +843,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -954,19 +909,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (latestPatchOnly != null) {
-      _queryParams['latestPatchOnly'] = ['${latestPatchOnly}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (latestPatchOnly != null) 'latestPatchOnly': ['${latestPatchOnly}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/versions';
diff --git a/generated/googleapis/lib/dataproc/v1.dart b/generated/googleapis/lib/dataproc/v1.dart
index 295ea37..a8eba32 100644
--- a/generated/googleapis/lib/dataproc/v1.dart
+++ b/generated/googleapis/lib/dataproc/v1.dart
@@ -125,10 +125,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -179,10 +178,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -226,10 +224,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -277,10 +274,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -333,16 +329,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -392,10 +383,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -447,10 +437,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -504,10 +493,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -563,10 +551,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -621,13 +608,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (version != null) {
-      _queryParams['version'] = ['${version}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (version != null) 'version': ['${version}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -677,13 +661,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (version != null) {
-      _queryParams['version'] = ['${version}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (version != null) 'version': ['${version}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -731,10 +712,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -796,10 +776,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':instantiate';
@@ -870,13 +849,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -929,16 +905,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -988,10 +959,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1043,10 +1013,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1102,10 +1071,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1178,10 +1146,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1232,10 +1199,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1279,10 +1245,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1330,10 +1295,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1386,16 +1350,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1445,10 +1404,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1500,10 +1458,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1557,10 +1514,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1630,13 +1586,10 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1707,16 +1660,11 @@
     if (clusterName == null) {
       throw core.ArgumentError('Parameter clusterName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clusterUuid != null) {
-      _queryParams['clusterUuid'] = [clusterUuid];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clusterUuid != null) 'clusterUuid': [clusterUuid],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1780,10 +1728,9 @@
     if (clusterName == null) {
       throw core.ArgumentError('Parameter clusterName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1838,10 +1785,9 @@
     if (clusterName == null) {
       throw core.ArgumentError('Parameter clusterName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1893,10 +1839,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1958,10 +1903,9 @@
     if (cluster == null) {
       throw core.ArgumentError('Parameter cluster is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$project') +
@@ -2030,19 +1974,12 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2142,21 +2079,13 @@
     if (clusterName == null) {
       throw core.ArgumentError('Parameter clusterName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (gracefulDecommissionTimeout != null) {
-      _queryParams['gracefulDecommissionTimeout'] = [
-        gracefulDecommissionTimeout
-      ];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (gracefulDecommissionTimeout != null)
+        'gracefulDecommissionTimeout': [gracefulDecommissionTimeout],
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2209,10 +2138,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2268,10 +2196,9 @@
     if (clusterName == null) {
       throw core.ArgumentError('Parameter clusterName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2331,10 +2258,9 @@
     if (clusterName == null) {
       throw core.ArgumentError('Parameter clusterName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2390,10 +2316,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2463,10 +2388,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2524,10 +2448,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2580,10 +2503,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2634,10 +2556,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2714,25 +2635,14 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clusterName != null) {
-      _queryParams['clusterName'] = [clusterName];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (jobStateMatcher != null) {
-      _queryParams['jobStateMatcher'] = [jobStateMatcher];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clusterName != null) 'clusterName': [clusterName],
+      if (filter != null) 'filter': [filter],
+      if (jobStateMatcher != null) 'jobStateMatcher': [jobStateMatcher],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2797,13 +2707,10 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2855,10 +2762,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2908,10 +2814,9 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2963,10 +2868,9 @@
     if (region == null) {
       throw core.ArgumentError('Parameter region is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3019,10 +2923,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3079,10 +2982,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -3124,10 +3026,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3167,10 +3068,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3217,10 +3117,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3277,19 +3176,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3337,10 +3229,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3392,10 +3283,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3453,10 +3343,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3511,13 +3400,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (version != null) {
-      _queryParams['version'] = ['${version}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (version != null) 'version': ['${version}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3567,13 +3453,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (version != null) {
-      _queryParams['version'] = ['${version}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (version != null) 'version': ['${version}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3621,10 +3504,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3686,10 +3568,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':instantiate';
@@ -3760,13 +3641,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3819,16 +3697,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3878,10 +3751,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3933,10 +3805,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3992,10 +3863,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/datastore/v1.dart b/generated/googleapis/lib/datastore/v1.dart
index cca90f2..78067a5 100644
--- a/generated/googleapis/lib/datastore/v1.dart
+++ b/generated/googleapis/lib/datastore/v1.dart
@@ -100,10 +100,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -148,10 +147,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -197,10 +195,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -252,10 +249,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -305,10 +301,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -353,10 +348,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -402,10 +396,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -450,10 +443,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -498,10 +490,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -560,10 +551,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -616,10 +606,9 @@
     if (indexId == null) {
       throw core.ArgumentError('Parameter indexId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -664,10 +653,9 @@
     if (indexId == null) {
       throw core.ArgumentError('Parameter indexId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -720,19 +708,12 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -786,10 +767,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -830,10 +810,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -872,10 +851,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -930,19 +908,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/deploymentmanager/v2.dart b/generated/googleapis/lib/deploymentmanager/v2.dart
index ade2c1d..4671049 100644
--- a/generated/googleapis/lib/deploymentmanager/v2.dart
+++ b/generated/googleapis/lib/deploymentmanager/v2.dart
@@ -122,10 +122,9 @@
     if (deployment == null) {
       throw core.ArgumentError('Parameter deployment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -179,13 +178,10 @@
     if (deployment == null) {
       throw core.ArgumentError('Parameter deployment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (deletePolicy != null) {
-      _queryParams['deletePolicy'] = [deletePolicy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (deletePolicy != null) 'deletePolicy': [deletePolicy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -232,10 +228,9 @@
     if (deployment == null) {
       throw core.ArgumentError('Parameter deployment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -289,15 +284,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -360,16 +351,11 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (createPolicy != null) {
-      _queryParams['createPolicy'] = [createPolicy];
-    }
-    if (preview != null) {
-      _queryParams['preview'] = ['${preview}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (createPolicy != null) 'createPolicy': [createPolicy],
+      if (preview != null) 'preview': ['${preview}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -450,22 +436,13 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -542,19 +519,12 @@
     if (deployment == null) {
       throw core.ArgumentError('Parameter deployment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (createPolicy != null) {
-      _queryParams['createPolicy'] = [createPolicy];
-    }
-    if (deletePolicy != null) {
-      _queryParams['deletePolicy'] = [deletePolicy];
-    }
-    if (preview != null) {
-      _queryParams['preview'] = ['${preview}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (createPolicy != null) 'createPolicy': [createPolicy],
+      if (deletePolicy != null) 'deletePolicy': [deletePolicy],
+      if (preview != null) 'preview': ['${preview}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -610,10 +580,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -670,10 +639,9 @@
     if (deployment == null) {
       throw core.ArgumentError('Parameter deployment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -728,10 +696,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -811,19 +778,12 @@
     if (deployment == null) {
       throw core.ArgumentError('Parameter deployment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (createPolicy != null) {
-      _queryParams['createPolicy'] = [createPolicy];
-    }
-    if (deletePolicy != null) {
-      _queryParams['deletePolicy'] = [deletePolicy];
-    }
-    if (preview != null) {
-      _queryParams['preview'] = ['${preview}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (createPolicy != null) 'createPolicy': [createPolicy],
+      if (deletePolicy != null) 'deletePolicy': [deletePolicy],
+      if (preview != null) 'preview': ['${preview}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -884,10 +844,9 @@
     if (manifest == null) {
       throw core.ArgumentError('Parameter manifest is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -977,22 +936,13 @@
     if (deployment == null) {
       throw core.ArgumentError('Parameter deployment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1046,10 +996,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1130,22 +1079,13 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1204,10 +1144,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1297,22 +1236,13 @@
     if (deployment == null) {
       throw core.ArgumentError('Parameter deployment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1401,22 +1331,13 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'deploymentmanager/v2/projects/' +
         commons.Escaper.ecapeVariable('$project') +
diff --git a/generated/googleapis/lib/dfareporting/v3_4.dart b/generated/googleapis/lib/dfareporting/v3_4.dart
index 53ad7ad..8cc071e 100644
--- a/generated/googleapis/lib/dfareporting/v3_4.dart
+++ b/generated/googleapis/lib/dfareporting/v3_4.dart
@@ -261,10 +261,9 @@
     if (summaryAccountId == null) {
       throw core.ArgumentError('Parameter summaryAccountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -316,10 +315,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -358,10 +356,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -411,10 +408,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -453,10 +449,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -507,10 +502,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -554,10 +548,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -639,37 +632,18 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (active != null) {
-      _queryParams['active'] = ['${active}'];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (subaccountId != null) {
-      _queryParams['subaccountId'] = [subaccountId];
-    }
-    if (userRoleId != null) {
-      _queryParams['userRoleId'] = [userRoleId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (active != null) 'active': ['${active}'],
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (subaccountId != null) 'subaccountId': [subaccountId],
+      if (userRoleId != null) 'userRoleId': [userRoleId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -717,14 +691,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -768,10 +741,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -822,10 +794,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -899,31 +870,16 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (active != null) {
-      _queryParams['active'] = ['${active}'];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (active != null) 'active': ['${active}'],
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -971,14 +927,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1021,10 +976,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1074,10 +1028,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1120,10 +1073,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'userprofiles/' + commons.Escaper.ecapeVariable('$profileId') + '/ads';
@@ -1260,80 +1212,36 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (active != null) {
-      _queryParams['active'] = ['${active}'];
-    }
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (archived != null) {
-      _queryParams['archived'] = ['${archived}'];
-    }
-    if (audienceSegmentIds != null) {
-      _queryParams['audienceSegmentIds'] = audienceSegmentIds;
-    }
-    if (campaignIds != null) {
-      _queryParams['campaignIds'] = campaignIds;
-    }
-    if (compatibility != null) {
-      _queryParams['compatibility'] = [compatibility];
-    }
-    if (creativeIds != null) {
-      _queryParams['creativeIds'] = creativeIds;
-    }
-    if (creativeOptimizationConfigurationIds != null) {
-      _queryParams['creativeOptimizationConfigurationIds'] =
-          creativeOptimizationConfigurationIds;
-    }
-    if (dynamicClickTracker != null) {
-      _queryParams['dynamicClickTracker'] = ['${dynamicClickTracker}'];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (landingPageIds != null) {
-      _queryParams['landingPageIds'] = landingPageIds;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (overriddenEventTagId != null) {
-      _queryParams['overriddenEventTagId'] = [overriddenEventTagId];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (placementIds != null) {
-      _queryParams['placementIds'] = placementIds;
-    }
-    if (remarketingListIds != null) {
-      _queryParams['remarketingListIds'] = remarketingListIds;
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sizeIds != null) {
-      _queryParams['sizeIds'] = sizeIds;
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (sslCompliant != null) {
-      _queryParams['sslCompliant'] = ['${sslCompliant}'];
-    }
-    if (sslRequired != null) {
-      _queryParams['sslRequired'] = ['${sslRequired}'];
-    }
-    if (type != null) {
-      _queryParams['type'] = type;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (active != null) 'active': ['${active}'],
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (archived != null) 'archived': ['${archived}'],
+      if (audienceSegmentIds != null) 'audienceSegmentIds': audienceSegmentIds,
+      if (campaignIds != null) 'campaignIds': campaignIds,
+      if (compatibility != null) 'compatibility': [compatibility],
+      if (creativeIds != null) 'creativeIds': creativeIds,
+      if (creativeOptimizationConfigurationIds != null)
+        'creativeOptimizationConfigurationIds':
+            creativeOptimizationConfigurationIds,
+      if (dynamicClickTracker != null)
+        'dynamicClickTracker': ['${dynamicClickTracker}'],
+      if (ids != null) 'ids': ids,
+      if (landingPageIds != null) 'landingPageIds': landingPageIds,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (overriddenEventTagId != null)
+        'overriddenEventTagId': [overriddenEventTagId],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (placementIds != null) 'placementIds': placementIds,
+      if (remarketingListIds != null) 'remarketingListIds': remarketingListIds,
+      if (searchString != null) 'searchString': [searchString],
+      if (sizeIds != null) 'sizeIds': sizeIds,
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (sslCompliant != null) 'sslCompliant': ['${sslCompliant}'],
+      if (sslRequired != null) 'sslRequired': ['${sslRequired}'],
+      if (type != null) 'type': type,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'userprofiles/' + commons.Escaper.ecapeVariable('$profileId') + '/ads';
@@ -1380,14 +1288,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'userprofiles/' + commons.Escaper.ecapeVariable('$profileId') + '/ads';
@@ -1429,10 +1336,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'userprofiles/' + commons.Escaper.ecapeVariable('$profileId') + '/ads';
@@ -1479,10 +1385,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1526,10 +1431,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1573,10 +1477,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1648,28 +1551,15 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1717,14 +1607,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1768,10 +1657,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1823,10 +1711,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1870,10 +1757,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -1958,40 +1844,19 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserIds != null) {
-      _queryParams['advertiserIds'] = advertiserIds;
-    }
-    if (archived != null) {
-      _queryParams['archived'] = ['${archived}'];
-    }
-    if (campaignIds != null) {
-      _queryParams['campaignIds'] = campaignIds;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (subaccountId != null) {
-      _queryParams['subaccountId'] = [subaccountId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserIds != null) 'advertiserIds': advertiserIds,
+      if (archived != null) 'archived': ['${archived}'],
+      if (campaignIds != null) 'campaignIds': campaignIds,
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (subaccountId != null) 'subaccountId': [subaccountId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2039,14 +1904,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2090,10 +1954,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2144,10 +2007,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2191,10 +2053,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2291,48 +2152,25 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserGroupIds != null) {
-      _queryParams['advertiserGroupIds'] = advertiserGroupIds;
-    }
-    if (floodlightConfigurationIds != null) {
-      _queryParams['floodlightConfigurationIds'] = floodlightConfigurationIds;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (includeAdvertisersWithoutGroupsOnly != null) {
-      _queryParams['includeAdvertisersWithoutGroupsOnly'] = [
-        '${includeAdvertisersWithoutGroupsOnly}'
-      ];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (onlyParent != null) {
-      _queryParams['onlyParent'] = ['${onlyParent}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (status != null) {
-      _queryParams['status'] = [status];
-    }
-    if (subaccountId != null) {
-      _queryParams['subaccountId'] = [subaccountId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserGroupIds != null) 'advertiserGroupIds': advertiserGroupIds,
+      if (floodlightConfigurationIds != null)
+        'floodlightConfigurationIds': floodlightConfigurationIds,
+      if (ids != null) 'ids': ids,
+      if (includeAdvertisersWithoutGroupsOnly != null)
+        'includeAdvertisersWithoutGroupsOnly': [
+          '${includeAdvertisersWithoutGroupsOnly}'
+        ],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (onlyParent != null) 'onlyParent': ['${onlyParent}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (status != null) 'status': [status],
+      if (subaccountId != null) 'subaccountId': [subaccountId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2380,14 +2218,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2431,10 +2268,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2479,10 +2315,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2541,10 +2376,9 @@
     if (campaignId == null) {
       throw core.ArgumentError('Parameter campaignId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2606,19 +2440,12 @@
     if (campaignId == null) {
       throw core.ArgumentError('Parameter campaignId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2670,10 +2497,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2716,10 +2542,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2815,51 +2640,24 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserGroupIds != null) {
-      _queryParams['advertiserGroupIds'] = advertiserGroupIds;
-    }
-    if (advertiserIds != null) {
-      _queryParams['advertiserIds'] = advertiserIds;
-    }
-    if (archived != null) {
-      _queryParams['archived'] = ['${archived}'];
-    }
-    if (atLeastOneOptimizationActivity != null) {
-      _queryParams['atLeastOneOptimizationActivity'] = [
-        '${atLeastOneOptimizationActivity}'
-      ];
-    }
-    if (excludedIds != null) {
-      _queryParams['excludedIds'] = excludedIds;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (overriddenEventTagId != null) {
-      _queryParams['overriddenEventTagId'] = [overriddenEventTagId];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (subaccountId != null) {
-      _queryParams['subaccountId'] = [subaccountId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserGroupIds != null) 'advertiserGroupIds': advertiserGroupIds,
+      if (advertiserIds != null) 'advertiserIds': advertiserIds,
+      if (archived != null) 'archived': ['${archived}'],
+      if (atLeastOneOptimizationActivity != null)
+        'atLeastOneOptimizationActivity': ['${atLeastOneOptimizationActivity}'],
+      if (excludedIds != null) 'excludedIds': excludedIds,
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (overriddenEventTagId != null)
+        'overriddenEventTagId': [overriddenEventTagId],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (subaccountId != null) 'subaccountId': [subaccountId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2907,14 +2705,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -2957,10 +2754,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3010,10 +2806,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3154,40 +2949,19 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (action != null) {
-      _queryParams['action'] = [action];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxChangeTime != null) {
-      _queryParams['maxChangeTime'] = [maxChangeTime];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (minChangeTime != null) {
-      _queryParams['minChangeTime'] = [minChangeTime];
-    }
-    if (objectIds != null) {
-      _queryParams['objectIds'] = objectIds;
-    }
-    if (objectType != null) {
-      _queryParams['objectType'] = [objectType];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (userProfileIds != null) {
-      _queryParams['userProfileIds'] = userProfileIds;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (action != null) 'action': [action],
+      if (ids != null) 'ids': ids,
+      if (maxChangeTime != null) 'maxChangeTime': [maxChangeTime],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (minChangeTime != null) 'minChangeTime': [minChangeTime],
+      if (objectIds != null) 'objectIds': objectIds,
+      if (objectType != null) 'objectType': [objectType],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (userProfileIds != null) 'userProfileIds': userProfileIds,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3243,22 +3017,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (countryDartIds != null) {
-      _queryParams['countryDartIds'] = countryDartIds;
-    }
-    if (dartIds != null) {
-      _queryParams['dartIds'] = dartIds;
-    }
-    if (namePrefix != null) {
-      _queryParams['namePrefix'] = [namePrefix];
-    }
-    if (regionDartIds != null) {
-      _queryParams['regionDartIds'] = regionDartIds;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (countryDartIds != null) 'countryDartIds': countryDartIds,
+      if (dartIds != null) 'dartIds': dartIds,
+      if (namePrefix != null) 'namePrefix': [namePrefix],
+      if (regionDartIds != null) 'regionDartIds': regionDartIds,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3308,10 +3073,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3350,10 +3114,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3401,10 +3164,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3448,10 +3210,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3495,10 +3256,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3570,28 +3330,15 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3639,14 +3386,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3690,10 +3436,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3743,10 +3488,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3790,10 +3534,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3844,10 +3587,9 @@
     if (dartId == null) {
       throw core.ArgumentError('Parameter dartId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3885,10 +3627,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -3946,10 +3687,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -4018,10 +3758,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4073,10 +3812,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4128,10 +3866,9 @@
     if (creativeFieldId == null) {
       throw core.ArgumentError('Parameter creativeFieldId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4206,28 +3943,15 @@
     if (creativeFieldId == null) {
       throw core.ArgumentError('Parameter creativeFieldId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4283,14 +4007,13 @@
     if (creativeFieldId == null) {
       throw core.ArgumentError('Parameter creativeFieldId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4342,10 +4065,9 @@
     if (creativeFieldId == null) {
       throw core.ArgumentError('Parameter creativeFieldId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4396,10 +4118,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4443,10 +4164,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4490,10 +4210,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4570,31 +4289,16 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserIds != null) {
-      _queryParams['advertiserIds'] = advertiserIds;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserIds != null) 'advertiserIds': advertiserIds,
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4642,14 +4346,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4693,10 +4396,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4747,10 +4449,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4794,10 +4495,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4878,34 +4578,17 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserIds != null) {
-      _queryParams['advertiserIds'] = advertiserIds;
-    }
-    if (groupNumber != null) {
-      _queryParams['groupNumber'] = ['${groupNumber}'];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserIds != null) 'advertiserIds': advertiserIds,
+      if (groupNumber != null) 'groupNumber': ['${groupNumber}'],
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -4953,14 +4636,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5004,10 +4686,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5058,10 +4739,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5104,10 +4784,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5212,58 +4891,26 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (active != null) {
-      _queryParams['active'] = ['${active}'];
-    }
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (archived != null) {
-      _queryParams['archived'] = ['${archived}'];
-    }
-    if (campaignId != null) {
-      _queryParams['campaignId'] = [campaignId];
-    }
-    if (companionCreativeIds != null) {
-      _queryParams['companionCreativeIds'] = companionCreativeIds;
-    }
-    if (creativeFieldIds != null) {
-      _queryParams['creativeFieldIds'] = creativeFieldIds;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (renderingIds != null) {
-      _queryParams['renderingIds'] = renderingIds;
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sizeIds != null) {
-      _queryParams['sizeIds'] = sizeIds;
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (studioCreativeId != null) {
-      _queryParams['studioCreativeId'] = [studioCreativeId];
-    }
-    if (types != null) {
-      _queryParams['types'] = types;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (active != null) 'active': ['${active}'],
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (archived != null) 'archived': ['${archived}'],
+      if (campaignId != null) 'campaignId': [campaignId],
+      if (companionCreativeIds != null)
+        'companionCreativeIds': companionCreativeIds,
+      if (creativeFieldIds != null) 'creativeFieldIds': creativeFieldIds,
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (renderingIds != null) 'renderingIds': renderingIds,
+      if (searchString != null) 'searchString': [searchString],
+      if (sizeIds != null) 'sizeIds': sizeIds,
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (studioCreativeId != null) 'studioCreativeId': [studioCreativeId],
+      if (types != null) 'types': types,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5311,14 +4958,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5361,10 +5007,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5413,10 +5058,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5473,16 +5117,11 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5533,10 +5172,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5580,10 +5218,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5675,49 +5312,23 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acceptsInStreamVideoPlacements != null) {
-      _queryParams['acceptsInStreamVideoPlacements'] = [
-        '${acceptsInStreamVideoPlacements}'
-      ];
-    }
-    if (acceptsInterstitialPlacements != null) {
-      _queryParams['acceptsInterstitialPlacements'] = [
-        '${acceptsInterstitialPlacements}'
-      ];
-    }
-    if (acceptsPublisherPaidPlacements != null) {
-      _queryParams['acceptsPublisherPaidPlacements'] = [
-        '${acceptsPublisherPaidPlacements}'
-      ];
-    }
-    if (active != null) {
-      _queryParams['active'] = ['${active}'];
-    }
-    if (dfpNetworkCode != null) {
-      _queryParams['dfpNetworkCode'] = [dfpNetworkCode];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acceptsInStreamVideoPlacements != null)
+        'acceptsInStreamVideoPlacements': ['${acceptsInStreamVideoPlacements}'],
+      if (acceptsInterstitialPlacements != null)
+        'acceptsInterstitialPlacements': ['${acceptsInterstitialPlacements}'],
+      if (acceptsPublisherPaidPlacements != null)
+        'acceptsPublisherPaidPlacements': ['${acceptsPublisherPaidPlacements}'],
+      if (active != null) 'active': ['${active}'],
+      if (dfpNetworkCode != null) 'dfpNetworkCode': [dfpNetworkCode],
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5781,18 +5392,17 @@
     if (objectId == null) {
       throw core.ArgumentError('Parameter objectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    _queryParams['name'] = [name];
     if (objectType == null) {
       throw core.ArgumentError('Parameter objectType is required.');
     }
-    _queryParams['objectType'] = [objectType];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'name': [name],
+      'objectType': [objectType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5840,10 +5450,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5900,22 +5509,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (names != null) {
-      _queryParams['names'] = names;
-    }
-    if (objectId != null) {
-      _queryParams['objectId'] = [objectId];
-    }
-    if (objectType != null) {
-      _queryParams['objectType'] = [objectType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (names != null) 'names': names,
+      if (objectId != null) 'objectId': [objectId],
+      if (objectType != null) 'objectType': [objectType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -5963,10 +5563,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6010,10 +5609,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6056,10 +5654,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6153,40 +5750,19 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (adId != null) {
-      _queryParams['adId'] = [adId];
-    }
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (campaignId != null) {
-      _queryParams['campaignId'] = [campaignId];
-    }
-    if (definitionsOnly != null) {
-      _queryParams['definitionsOnly'] = ['${definitionsOnly}'];
-    }
-    if (enabled != null) {
-      _queryParams['enabled'] = ['${enabled}'];
-    }
-    if (eventTagTypes != null) {
-      _queryParams['eventTagTypes'] = eventTagTypes;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (adId != null) 'adId': [adId],
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (campaignId != null) 'campaignId': [campaignId],
+      if (definitionsOnly != null) 'definitionsOnly': ['${definitionsOnly}'],
+      if (enabled != null) 'enabled': ['${enabled}'],
+      if (eventTagTypes != null) 'eventTagTypes': eventTagTypes,
+      if (ids != null) 'ids': ids,
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6234,14 +5810,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6284,10 +5859,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6348,10 +5922,9 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'reports/' +
         commons.Escaper.ecapeVariable('$reportId') +
@@ -6421,25 +5994,14 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (scope != null) {
-      _queryParams['scope'] = [scope];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (scope != null) 'scope': [scope],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6487,10 +6049,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6532,13 +6093,11 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (floodlightActivityId != null) {
-      _queryParams['floodlightActivityId'] = [floodlightActivityId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (floodlightActivityId != null)
+        'floodlightActivityId': [floodlightActivityId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6582,10 +6141,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6629,10 +6187,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6740,55 +6297,27 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (floodlightActivityGroupIds != null) {
-      _queryParams['floodlightActivityGroupIds'] = floodlightActivityGroupIds;
-    }
-    if (floodlightActivityGroupName != null) {
-      _queryParams['floodlightActivityGroupName'] = [
-        floodlightActivityGroupName
-      ];
-    }
-    if (floodlightActivityGroupTagString != null) {
-      _queryParams['floodlightActivityGroupTagString'] = [
-        floodlightActivityGroupTagString
-      ];
-    }
-    if (floodlightActivityGroupType != null) {
-      _queryParams['floodlightActivityGroupType'] = [
-        floodlightActivityGroupType
-      ];
-    }
-    if (floodlightConfigurationId != null) {
-      _queryParams['floodlightConfigurationId'] = [floodlightConfigurationId];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (tagString != null) {
-      _queryParams['tagString'] = [tagString];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (floodlightActivityGroupIds != null)
+        'floodlightActivityGroupIds': floodlightActivityGroupIds,
+      if (floodlightActivityGroupName != null)
+        'floodlightActivityGroupName': [floodlightActivityGroupName],
+      if (floodlightActivityGroupTagString != null)
+        'floodlightActivityGroupTagString': [floodlightActivityGroupTagString],
+      if (floodlightActivityGroupType != null)
+        'floodlightActivityGroupType': [floodlightActivityGroupType],
+      if (floodlightConfigurationId != null)
+        'floodlightConfigurationId': [floodlightConfigurationId],
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (tagString != null) 'tagString': [tagString],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6836,14 +6365,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6887,10 +6415,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6942,10 +6469,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -6989,10 +6515,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7085,37 +6610,19 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (floodlightConfigurationId != null) {
-      _queryParams['floodlightConfigurationId'] = [floodlightConfigurationId];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (floodlightConfigurationId != null)
+        'floodlightConfigurationId': [floodlightConfigurationId],
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7163,14 +6670,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7214,10 +6720,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7269,10 +6774,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7315,13 +6819,10 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7369,14 +6870,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7420,10 +6920,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7480,10 +6979,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7570,37 +7068,18 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (inPlan != null) {
-      _queryParams['inPlan'] = ['${inPlan}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderId != null) {
-      _queryParams['orderId'] = orderId;
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (siteId != null) {
-      _queryParams['siteId'] = siteId;
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if (inPlan != null) 'inPlan': ['${inPlan}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderId != null) 'orderId': orderId,
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (siteId != null) 'siteId': siteId,
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7646,10 +7125,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7693,10 +7171,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7746,10 +7223,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7808,25 +7284,14 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (directories != null) {
-      _queryParams['directories'] = directories;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (directories != null) 'directories': directories,
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7876,10 +7341,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7918,10 +7382,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -7972,10 +7435,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8014,10 +7476,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8067,10 +7528,9 @@
     if (dartId == null) {
       throw core.ArgumentError('Parameter dartId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8109,10 +7569,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8168,10 +7627,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8263,37 +7721,18 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (approved != null) {
-      _queryParams['approved'] = ['${approved}'];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderId != null) {
-      _queryParams['orderId'] = orderId;
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (siteId != null) {
-      _queryParams['siteId'] = siteId;
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (approved != null) 'approved': ['${approved}'],
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderId != null) 'orderId': orderId,
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (siteId != null) 'siteId': siteId,
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8351,10 +7790,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8435,31 +7873,16 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (siteId != null) {
-      _queryParams['siteId'] = siteId;
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (siteId != null) 'siteId': siteId,
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8511,10 +7934,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8558,10 +7980,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8697,67 +8118,30 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserIds != null) {
-      _queryParams['advertiserIds'] = advertiserIds;
-    }
-    if (archived != null) {
-      _queryParams['archived'] = ['${archived}'];
-    }
-    if (campaignIds != null) {
-      _queryParams['campaignIds'] = campaignIds;
-    }
-    if (contentCategoryIds != null) {
-      _queryParams['contentCategoryIds'] = contentCategoryIds;
-    }
-    if (directorySiteIds != null) {
-      _queryParams['directorySiteIds'] = directorySiteIds;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxEndDate != null) {
-      _queryParams['maxEndDate'] = [maxEndDate];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (maxStartDate != null) {
-      _queryParams['maxStartDate'] = [maxStartDate];
-    }
-    if (minEndDate != null) {
-      _queryParams['minEndDate'] = [minEndDate];
-    }
-    if (minStartDate != null) {
-      _queryParams['minStartDate'] = [minStartDate];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (placementGroupType != null) {
-      _queryParams['placementGroupType'] = [placementGroupType];
-    }
-    if (placementStrategyIds != null) {
-      _queryParams['placementStrategyIds'] = placementStrategyIds;
-    }
-    if (pricingTypes != null) {
-      _queryParams['pricingTypes'] = pricingTypes;
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (siteIds != null) {
-      _queryParams['siteIds'] = siteIds;
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserIds != null) 'advertiserIds': advertiserIds,
+      if (archived != null) 'archived': ['${archived}'],
+      if (campaignIds != null) 'campaignIds': campaignIds,
+      if (contentCategoryIds != null) 'contentCategoryIds': contentCategoryIds,
+      if (directorySiteIds != null) 'directorySiteIds': directorySiteIds,
+      if (ids != null) 'ids': ids,
+      if (maxEndDate != null) 'maxEndDate': [maxEndDate],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (maxStartDate != null) 'maxStartDate': [maxStartDate],
+      if (minEndDate != null) 'minEndDate': [minEndDate],
+      if (minStartDate != null) 'minStartDate': [minStartDate],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (placementGroupType != null)
+        'placementGroupType': [placementGroupType],
+      if (placementStrategyIds != null)
+        'placementStrategyIds': placementStrategyIds,
+      if (pricingTypes != null) 'pricingTypes': pricingTypes,
+      if (searchString != null) 'searchString': [searchString],
+      if (siteIds != null) 'siteIds': siteIds,
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8805,14 +8189,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8856,10 +8239,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8909,10 +8291,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -8956,10 +8337,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9003,10 +8383,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9079,28 +8458,15 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9148,14 +8514,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9199,10 +8564,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9258,19 +8622,12 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (campaignId != null) {
-      _queryParams['campaignId'] = [campaignId];
-    }
-    if (placementIds != null) {
-      _queryParams['placementIds'] = placementIds;
-    }
-    if (tagFormats != null) {
-      _queryParams['tagFormats'] = tagFormats;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (campaignId != null) 'campaignId': [campaignId],
+      if (placementIds != null) 'placementIds': placementIds,
+      if (tagFormats != null) 'tagFormats': tagFormats,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9314,10 +8671,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9360,10 +8716,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9502,76 +8857,32 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserIds != null) {
-      _queryParams['advertiserIds'] = advertiserIds;
-    }
-    if (archived != null) {
-      _queryParams['archived'] = ['${archived}'];
-    }
-    if (campaignIds != null) {
-      _queryParams['campaignIds'] = campaignIds;
-    }
-    if (compatibilities != null) {
-      _queryParams['compatibilities'] = compatibilities;
-    }
-    if (contentCategoryIds != null) {
-      _queryParams['contentCategoryIds'] = contentCategoryIds;
-    }
-    if (directorySiteIds != null) {
-      _queryParams['directorySiteIds'] = directorySiteIds;
-    }
-    if (groupIds != null) {
-      _queryParams['groupIds'] = groupIds;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxEndDate != null) {
-      _queryParams['maxEndDate'] = [maxEndDate];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (maxStartDate != null) {
-      _queryParams['maxStartDate'] = [maxStartDate];
-    }
-    if (minEndDate != null) {
-      _queryParams['minEndDate'] = [minEndDate];
-    }
-    if (minStartDate != null) {
-      _queryParams['minStartDate'] = [minStartDate];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (paymentSource != null) {
-      _queryParams['paymentSource'] = [paymentSource];
-    }
-    if (placementStrategyIds != null) {
-      _queryParams['placementStrategyIds'] = placementStrategyIds;
-    }
-    if (pricingTypes != null) {
-      _queryParams['pricingTypes'] = pricingTypes;
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (siteIds != null) {
-      _queryParams['siteIds'] = siteIds;
-    }
-    if (sizeIds != null) {
-      _queryParams['sizeIds'] = sizeIds;
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserIds != null) 'advertiserIds': advertiserIds,
+      if (archived != null) 'archived': ['${archived}'],
+      if (campaignIds != null) 'campaignIds': campaignIds,
+      if (compatibilities != null) 'compatibilities': compatibilities,
+      if (contentCategoryIds != null) 'contentCategoryIds': contentCategoryIds,
+      if (directorySiteIds != null) 'directorySiteIds': directorySiteIds,
+      if (groupIds != null) 'groupIds': groupIds,
+      if (ids != null) 'ids': ids,
+      if (maxEndDate != null) 'maxEndDate': [maxEndDate],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (maxStartDate != null) 'maxStartDate': [maxStartDate],
+      if (minEndDate != null) 'minEndDate': [minEndDate],
+      if (minStartDate != null) 'minStartDate': [minStartDate],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (paymentSource != null) 'paymentSource': [paymentSource],
+      if (placementStrategyIds != null)
+        'placementStrategyIds': placementStrategyIds,
+      if (pricingTypes != null) 'pricingTypes': pricingTypes,
+      if (searchString != null) 'searchString': [searchString],
+      if (siteIds != null) 'siteIds': siteIds,
+      if (sizeIds != null) 'sizeIds': sizeIds,
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9619,14 +8930,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9669,10 +8979,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9722,10 +9031,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9764,10 +9072,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9817,10 +9124,9 @@
     if (code == null) {
       throw core.ArgumentError('Parameter code is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9859,10 +9165,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9912,10 +9217,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -9989,31 +9293,16 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserIds != null) {
-      _queryParams['advertiserIds'] = advertiserIds;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserIds != null) 'advertiserIds': advertiserIds,
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10057,10 +9346,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10111,10 +9399,9 @@
     if (remarketingListId == null) {
       throw core.ArgumentError('Parameter remarketingListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10163,14 +9450,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10214,10 +9500,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10268,10 +9553,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10315,10 +9599,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10397,35 +9680,21 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    _queryParams['advertiserId'] = [advertiserId];
-    if (active != null) {
-      _queryParams['active'] = ['${active}'];
-    }
-    if (floodlightActivityId != null) {
-      _queryParams['floodlightActivityId'] = [floodlightActivityId];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'advertiserId': [advertiserId],
+      if (active != null) 'active': ['${active}'],
+      if (floodlightActivityId != null)
+        'floodlightActivityId': [floodlightActivityId],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (name != null) 'name': [name],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10473,14 +9742,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10524,10 +9792,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10580,10 +9847,9 @@
     if (reportId == null) {
       throw core.ArgumentError('Parameter reportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10627,10 +9893,9 @@
     if (reportId == null) {
       throw core.ArgumentError('Parameter reportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10673,10 +9938,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10740,25 +10004,14 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (scope != null) {
-      _queryParams['scope'] = [scope];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (scope != null) 'scope': [scope],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10809,10 +10062,9 @@
     if (reportId == null) {
       throw core.ArgumentError('Parameter reportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10860,13 +10112,10 @@
     if (reportId == null) {
       throw core.ArgumentError('Parameter reportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (synchronous != null) {
-      _queryParams['synchronous'] = ['${synchronous}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (synchronous != null) 'synchronous': ['${synchronous}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10916,10 +10165,9 @@
     if (reportId == null) {
       throw core.ArgumentError('Parameter reportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -10972,10 +10220,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11043,10 +10290,9 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11117,22 +10363,13 @@
     if (reportId == null) {
       throw core.ArgumentError('Parameter reportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11183,10 +10420,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11229,10 +10465,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11333,61 +10568,27 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acceptsInStreamVideoPlacements != null) {
-      _queryParams['acceptsInStreamVideoPlacements'] = [
-        '${acceptsInStreamVideoPlacements}'
-      ];
-    }
-    if (acceptsInterstitialPlacements != null) {
-      _queryParams['acceptsInterstitialPlacements'] = [
-        '${acceptsInterstitialPlacements}'
-      ];
-    }
-    if (acceptsPublisherPaidPlacements != null) {
-      _queryParams['acceptsPublisherPaidPlacements'] = [
-        '${acceptsPublisherPaidPlacements}'
-      ];
-    }
-    if (adWordsSite != null) {
-      _queryParams['adWordsSite'] = ['${adWordsSite}'];
-    }
-    if (approved != null) {
-      _queryParams['approved'] = ['${approved}'];
-    }
-    if (campaignIds != null) {
-      _queryParams['campaignIds'] = campaignIds;
-    }
-    if (directorySiteIds != null) {
-      _queryParams['directorySiteIds'] = directorySiteIds;
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (subaccountId != null) {
-      _queryParams['subaccountId'] = [subaccountId];
-    }
-    if (unmappedSite != null) {
-      _queryParams['unmappedSite'] = ['${unmappedSite}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acceptsInStreamVideoPlacements != null)
+        'acceptsInStreamVideoPlacements': ['${acceptsInStreamVideoPlacements}'],
+      if (acceptsInterstitialPlacements != null)
+        'acceptsInterstitialPlacements': ['${acceptsInterstitialPlacements}'],
+      if (acceptsPublisherPaidPlacements != null)
+        'acceptsPublisherPaidPlacements': ['${acceptsPublisherPaidPlacements}'],
+      if (adWordsSite != null) 'adWordsSite': ['${adWordsSite}'],
+      if (approved != null) 'approved': ['${approved}'],
+      if (campaignIds != null) 'campaignIds': campaignIds,
+      if (directorySiteIds != null) 'directorySiteIds': directorySiteIds,
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (subaccountId != null) 'subaccountId': [subaccountId],
+      if (unmappedSite != null) 'unmappedSite': ['${unmappedSite}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11435,14 +10636,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11485,10 +10685,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11538,10 +10737,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11584,10 +10782,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11643,22 +10840,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (height != null) {
-      _queryParams['height'] = ['${height}'];
-    }
-    if (iabStandard != null) {
-      _queryParams['iabStandard'] = ['${iabStandard}'];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (width != null) {
-      _queryParams['width'] = ['${width}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (height != null) 'height': ['${height}'],
+      if (iabStandard != null) 'iabStandard': ['${iabStandard}'],
+      if (ids != null) 'ids': ids,
+      if (width != null) 'width': ['${width}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11708,10 +10896,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11755,10 +10942,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11830,28 +11016,15 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11899,14 +11072,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -11950,10 +11122,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12005,10 +11176,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12085,32 +11255,19 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    _queryParams['advertiserId'] = [advertiserId];
-    if (active != null) {
-      _queryParams['active'] = ['${active}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'advertiserId': [advertiserId],
+      if (active != null) 'active': ['${active}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (name != null) 'name': [name],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12160,10 +11317,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12207,10 +11363,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12285,31 +11440,16 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12357,14 +11497,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12408,10 +11547,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12456,10 +11594,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' + commons.Escaper.ecapeVariable('$profileId');
 
@@ -12489,10 +11626,9 @@
   async.Future<UserProfileList> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'userprofiles';
 
@@ -12541,10 +11677,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12583,10 +11718,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12637,10 +11771,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12682,13 +11815,10 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12736,10 +11866,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12783,10 +11912,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12829,10 +11957,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12910,34 +12037,18 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accountUserRoleOnly != null) {
-      _queryParams['accountUserRoleOnly'] = ['${accountUserRoleOnly}'];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchString != null) {
-      _queryParams['searchString'] = [searchString];
-    }
-    if (sortField != null) {
-      _queryParams['sortField'] = [sortField];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (subaccountId != null) {
-      _queryParams['subaccountId'] = [subaccountId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accountUserRoleOnly != null)
+        'accountUserRoleOnly': ['${accountUserRoleOnly}'],
+      if (ids != null) 'ids': ids,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchString != null) 'searchString': [searchString],
+      if (sortField != null) 'sortField': [sortField],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (subaccountId != null) 'subaccountId': [subaccountId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -12985,14 +12096,13 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -13035,10 +12145,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -13088,10 +12197,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
@@ -13130,10 +12238,9 @@
     if (profileId == null) {
       throw core.ArgumentError('Parameter profileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'userprofiles/' +
         commons.Escaper.ecapeVariable('$profileId') +
diff --git a/generated/googleapis/lib/dialogflow/v2.dart b/generated/googleapis/lib/dialogflow/v2.dart
index 6670652..ed5a82b 100644
--- a/generated/googleapis/lib/dialogflow/v2.dart
+++ b/generated/googleapis/lib/dialogflow/v2.dart
@@ -110,10 +110,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/agent';
@@ -152,10 +151,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/agent';
@@ -201,13 +199,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/agent';
@@ -269,10 +264,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -313,10 +307,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -364,13 +357,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -425,10 +415,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -483,10 +472,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -540,16 +528,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -596,10 +579,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -649,13 +631,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -711,10 +690,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -762,10 +740,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -817,13 +794,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -864,10 +838,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -911,13 +884,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -969,19 +939,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1036,16 +999,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1098,10 +1056,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1149,10 +1106,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1201,10 +1157,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1263,16 +1218,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1338,10 +1288,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/contexts';
@@ -1402,10 +1351,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -1465,10 +1413,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/contexts';
@@ -1512,10 +1459,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1557,10 +1503,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1610,16 +1555,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/contexts';
@@ -1675,13 +1615,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1742,10 +1679,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1794,10 +1730,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1843,10 +1778,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1900,16 +1834,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1967,13 +1896,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2026,10 +1952,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2077,10 +2002,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2140,16 +2064,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (intentView != null) {
-      _queryParams['intentView'] = [intentView];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (intentView != null) 'intentView': [intentView],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/intents';
@@ -2190,10 +2109,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2245,16 +2163,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (intentView != null) {
-      _queryParams['intentView'] = [intentView];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (intentView != null) 'intentView': [intentView],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2314,22 +2227,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (intentView != null) {
-      _queryParams['intentView'] = [intentView];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (intentView != null) 'intentView': [intentView],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/intents';
@@ -2391,19 +2295,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (intentView != null) {
-      _queryParams['intentView'] = [intentView];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (intentView != null) 'intentView': [intentView],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2457,10 +2354,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/contexts';
@@ -2520,10 +2416,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -2581,10 +2476,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/contexts';
@@ -2628,10 +2522,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2673,10 +2566,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2725,16 +2617,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/contexts';
@@ -2790,13 +2677,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2855,10 +2739,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2907,10 +2790,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2956,10 +2838,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3012,16 +2893,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3079,13 +2955,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3149,10 +3022,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -3194,10 +3066,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3252,19 +3123,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -3317,10 +3181,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -3361,10 +3224,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3419,19 +3281,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/dialogflow/v3.dart b/generated/googleapis/lib/dialogflow/v3.dart
index 3b71387..961aab0 100644
--- a/generated/googleapis/lib/dialogflow/v3.dart
+++ b/generated/googleapis/lib/dialogflow/v3.dart
@@ -154,10 +154,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/agents';
@@ -198,10 +197,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -245,10 +243,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':export';
@@ -289,10 +286,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -337,13 +333,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -389,16 +382,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/agents';
@@ -448,13 +436,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -502,10 +487,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':restore';
@@ -554,10 +538,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':validate';
@@ -619,13 +602,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -676,13 +656,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -730,13 +707,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -792,19 +766,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -863,16 +830,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -929,10 +891,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -974,10 +935,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1016,10 +976,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1066,16 +1025,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1126,16 +1080,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1184,13 +1133,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1243,10 +1189,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1288,10 +1233,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1330,10 +1274,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1380,16 +1323,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1438,13 +1376,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1491,10 +1426,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':start';
@@ -1542,10 +1476,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':stop';
@@ -1619,10 +1552,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -1679,10 +1611,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -1737,10 +1668,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -1800,10 +1730,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1847,10 +1776,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1891,10 +1819,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1944,16 +1871,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2004,13 +1926,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2079,13 +1998,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/flows';
@@ -2134,13 +2050,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2189,13 +2102,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2240,13 +2150,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2302,19 +2209,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/flows';
@@ -2372,16 +2272,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2428,10 +2323,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':train';
@@ -2480,10 +2374,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':validate';
@@ -2548,13 +2441,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/pages';
@@ -2603,13 +2493,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2660,13 +2547,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2725,19 +2609,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/pages';
@@ -2799,16 +2676,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2869,13 +2741,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2925,13 +2794,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2978,13 +2844,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3040,19 +2903,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3111,16 +2967,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3172,10 +3023,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/versions';
@@ -3216,10 +3066,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3258,10 +3107,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3308,16 +3156,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/versions';
@@ -3362,10 +3205,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':load';
@@ -3415,13 +3257,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3481,13 +3320,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/intents';
@@ -3528,10 +3364,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3578,13 +3413,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3647,22 +3479,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (intentView != null) {
-      _queryParams['intentView'] = [intentView];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (intentView != null) 'intentView': [intentView],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/intents';
@@ -3720,16 +3543,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3799,10 +3617,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -3859,10 +3676,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -3917,10 +3733,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -3980,10 +3795,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4027,10 +3841,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4071,10 +3884,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4124,16 +3936,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4184,13 +3991,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4245,10 +4049,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4294,10 +4097,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4347,13 +4149,10 @@
     if (agent == null) {
       throw core.ArgumentError('Parameter agent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$agent') +
@@ -4399,10 +4198,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/testCases';
@@ -4451,10 +4249,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4496,10 +4293,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4546,10 +4342,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4611,19 +4406,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/testCases';
@@ -4673,13 +4461,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4733,10 +4518,9 @@
     if (agentsId == null) {
       throw core.ArgumentError('Parameter agentsId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/projects/' +
         commons.Escaper.ecapeVariable('$projectsId') +
@@ -4812,19 +4596,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/results';
@@ -4876,10 +4653,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/webhooks';
@@ -4928,13 +4704,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4973,10 +4746,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5023,16 +4795,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/webhooks';
@@ -5082,13 +4849,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5143,10 +4907,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -5188,10 +4951,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5246,19 +5008,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -5309,10 +5064,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5354,10 +5108,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5398,10 +5151,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5447,16 +5199,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5506,13 +5253,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5565,10 +5309,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -5609,10 +5352,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5667,19 +5409,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/digitalassetlinks/v1.dart b/generated/googleapis/lib/digitalassetlinks/v1.dart
index a2bf062..87d129f 100644
--- a/generated/googleapis/lib/digitalassetlinks/v1.dart
+++ b/generated/googleapis/lib/digitalassetlinks/v1.dart
@@ -183,39 +183,24 @@
     core.String target_web_site,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (relation != null) {
-      _queryParams['relation'] = [relation];
-    }
-    if (source_androidApp_certificate_sha256Fingerprint != null) {
-      _queryParams['source.androidApp.certificate.sha256Fingerprint'] = [
-        source_androidApp_certificate_sha256Fingerprint
-      ];
-    }
-    if (source_androidApp_packageName != null) {
-      _queryParams['source.androidApp.packageName'] = [
-        source_androidApp_packageName
-      ];
-    }
-    if (source_web_site != null) {
-      _queryParams['source.web.site'] = [source_web_site];
-    }
-    if (target_androidApp_certificate_sha256Fingerprint != null) {
-      _queryParams['target.androidApp.certificate.sha256Fingerprint'] = [
-        target_androidApp_certificate_sha256Fingerprint
-      ];
-    }
-    if (target_androidApp_packageName != null) {
-      _queryParams['target.androidApp.packageName'] = [
-        target_androidApp_packageName
-      ];
-    }
-    if (target_web_site != null) {
-      _queryParams['target.web.site'] = [target_web_site];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (relation != null) 'relation': [relation],
+      if (source_androidApp_certificate_sha256Fingerprint != null)
+        'source.androidApp.certificate.sha256Fingerprint': [
+          source_androidApp_certificate_sha256Fingerprint
+        ],
+      if (source_androidApp_packageName != null)
+        'source.androidApp.packageName': [source_androidApp_packageName],
+      if (source_web_site != null) 'source.web.site': [source_web_site],
+      if (target_androidApp_certificate_sha256Fingerprint != null)
+        'target.androidApp.certificate.sha256Fingerprint': [
+          target_androidApp_certificate_sha256Fingerprint
+        ],
+      if (target_androidApp_packageName != null)
+        'target.androidApp.packageName': [target_androidApp_packageName],
+      if (target_web_site != null) 'target.web.site': [target_web_site],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/assetlinks:check';
 
@@ -314,26 +299,17 @@
     core.String source_web_site,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (relation != null) {
-      _queryParams['relation'] = [relation];
-    }
-    if (source_androidApp_certificate_sha256Fingerprint != null) {
-      _queryParams['source.androidApp.certificate.sha256Fingerprint'] = [
-        source_androidApp_certificate_sha256Fingerprint
-      ];
-    }
-    if (source_androidApp_packageName != null) {
-      _queryParams['source.androidApp.packageName'] = [
-        source_androidApp_packageName
-      ];
-    }
-    if (source_web_site != null) {
-      _queryParams['source.web.site'] = [source_web_site];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (relation != null) 'relation': [relation],
+      if (source_androidApp_certificate_sha256Fingerprint != null)
+        'source.androidApp.certificate.sha256Fingerprint': [
+          source_androidApp_certificate_sha256Fingerprint
+        ],
+      if (source_androidApp_packageName != null)
+        'source.androidApp.packageName': [source_androidApp_packageName],
+      if (source_web_site != null) 'source.web.site': [source_web_site],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/statements:list';
 
diff --git a/generated/googleapis/lib/discovery/v1.dart b/generated/googleapis/lib/discovery/v1.dart
index 1a0e99b..32a872a 100644
--- a/generated/googleapis/lib/discovery/v1.dart
+++ b/generated/googleapis/lib/discovery/v1.dart
@@ -85,10 +85,9 @@
     if (version == null) {
       throw core.ArgumentError('Parameter version is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/' +
         commons.Escaper.ecapeVariable('$api') +
@@ -128,16 +127,11 @@
     core.bool preferred,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (preferred != null) {
-      _queryParams['preferred'] = ['${preferred}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (name != null) 'name': [name],
+      if (preferred != null) 'preferred': ['${preferred}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'apis';
 
diff --git a/generated/googleapis/lib/displayvideo/v1.dart b/generated/googleapis/lib/displayvideo/v1.dart
index 777898b..2187060 100644
--- a/generated/googleapis/lib/displayvideo/v1.dart
+++ b/generated/googleapis/lib/displayvideo/v1.dart
@@ -196,13 +196,10 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (readMask != null) {
-      _queryParams['readMask'] = [readMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (readMask != null) 'readMask': [readMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -252,10 +249,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -324,22 +320,13 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -379,10 +366,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/advertisers';
 
@@ -424,10 +410,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId');
@@ -464,10 +449,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId');
@@ -540,25 +524,14 @@
     core.String partnerId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/advertisers';
 
@@ -606,13 +579,10 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId');
@@ -669,10 +639,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -736,10 +705,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -789,10 +757,9 @@
     if (campaignId == null) {
       throw core.ArgumentError('Parameter campaignId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -839,10 +806,9 @@
     if (campaignId == null) {
       throw core.ArgumentError('Parameter campaignId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -921,22 +887,13 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -994,13 +951,10 @@
     if (campaignId == null) {
       throw core.ArgumentError('Parameter campaignId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1060,13 +1014,10 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1115,13 +1066,10 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1189,25 +1137,14 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1266,16 +1203,11 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (partnerId != null) 'partnerId': [partnerId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1338,10 +1270,9 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -1398,13 +1329,10 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -1462,13 +1390,10 @@
     if (urlOrAppId == null) {
       throw core.ArgumentError('Parameter urlOrAppId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -1545,25 +1470,14 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1619,10 +1533,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1672,10 +1585,9 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1722,10 +1634,9 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1818,22 +1729,13 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1891,13 +1793,10 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -1952,10 +1851,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2006,10 +1904,9 @@
     if (insertionOrderId == null) {
       throw core.ArgumentError('Parameter insertionOrderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2058,10 +1955,9 @@
     if (insertionOrderId == null) {
       throw core.ArgumentError('Parameter insertionOrderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2150,22 +2046,13 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2223,13 +2110,10 @@
     if (insertionOrderId == null) {
       throw core.ArgumentError('Parameter insertionOrderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2300,10 +2184,9 @@
     if (lineItemId == null) {
       throw core.ArgumentError('Parameter lineItemId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2387,22 +2270,13 @@
     if (lineItemId == null) {
       throw core.ArgumentError('Parameter lineItemId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2451,10 +2325,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2504,10 +2377,9 @@
     if (lineItemId == null) {
       throw core.ArgumentError('Parameter lineItemId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2554,10 +2426,9 @@
     if (lineItemId == null) {
       throw core.ArgumentError('Parameter lineItemId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2651,22 +2522,13 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2724,13 +2586,10 @@
     if (lineItemId == null) {
       throw core.ArgumentError('Parameter lineItemId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -2893,10 +2752,9 @@
     if (targetingType == null) {
       throw core.ArgumentError('Parameter targetingType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -3045,10 +2903,9 @@
       throw core.ArgumentError(
           'Parameter assignedTargetingOptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -3197,10 +3054,9 @@
       throw core.ArgumentError(
           'Parameter assignedTargetingOptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -3370,22 +3226,13 @@
     if (targetingType == null) {
       throw core.ArgumentError('Parameter targetingType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -3446,10 +3293,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -3497,10 +3343,9 @@
     if (locationListId == null) {
       throw core.ArgumentError('Parameter locationListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -3568,22 +3413,13 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -3640,13 +3476,10 @@
     if (locationListId == null) {
       throw core.ArgumentError('Parameter locationListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -3713,10 +3546,9 @@
     if (locationListId == null) {
       throw core.ArgumentError('Parameter locationListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -3770,10 +3602,9 @@
     if (locationListId == null) {
       throw core.ArgumentError('Parameter locationListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -3830,10 +3661,9 @@
     if (assignedLocationId == null) {
       throw core.ArgumentError('Parameter assignedLocationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -3906,22 +3736,13 @@
     if (locationListId == null) {
       throw core.ArgumentError('Parameter locationListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -3985,10 +3806,9 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4038,10 +3858,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4094,10 +3913,9 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4147,10 +3965,9 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4221,22 +4038,13 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4293,13 +4101,10 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4359,10 +4164,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4412,10 +4216,9 @@
     if (negativeKeywordListId == null) {
       throw core.ArgumentError('Parameter negativeKeywordListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4464,10 +4267,9 @@
     if (negativeKeywordListId == null) {
       throw core.ArgumentError('Parameter negativeKeywordListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4519,16 +4321,11 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4585,13 +4382,10 @@
     if (negativeKeywordListId == null) {
       throw core.ArgumentError('Parameter negativeKeywordListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -4660,10 +4454,9 @@
     if (negativeKeywordListId == null) {
       throw core.ArgumentError('Parameter negativeKeywordListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -4718,10 +4511,9 @@
     if (negativeKeywordListId == null) {
       throw core.ArgumentError('Parameter negativeKeywordListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -4779,10 +4571,9 @@
     if (keywordValue == null) {
       throw core.ArgumentError('Parameter keywordValue is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariable('$advertiserId') +
@@ -4857,22 +4648,13 @@
     if (negativeKeywordListId == null) {
       throw core.ArgumentError('Parameter negativeKeywordListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -5028,10 +4810,9 @@
     if (targetingType == null) {
       throw core.ArgumentError('Parameter targetingType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -5171,10 +4952,9 @@
       throw core.ArgumentError(
           'Parameter assignedTargetingOptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -5314,10 +5094,9 @@
       throw core.ArgumentError(
           'Parameter assignedTargetingOptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -5475,22 +5254,13 @@
     if (targetingType == null) {
       throw core.ArgumentError('Parameter targetingType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/advertisers/' +
         commons.Escaper.ecapeVariableReserved('$advertiserId') +
@@ -5545,16 +5315,11 @@
     if (combinedAudienceId == null) {
       throw core.ArgumentError('Parameter combinedAudienceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/combinedAudiences/' +
         commons.Escaper.ecapeVariableReserved('$combinedAudienceId');
@@ -5621,28 +5386,15 @@
     core.String partnerId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/combinedAudiences';
 
@@ -5696,16 +5448,11 @@
       throw core.ArgumentError(
           'Parameter customBiddingAlgorithmId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/customBiddingAlgorithms/' +
         commons.Escaper.ecapeVariableReserved('$customBiddingAlgorithmId');
@@ -5782,28 +5529,15 @@
     core.String partnerId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/customBiddingAlgorithms';
 
@@ -5850,13 +5584,10 @@
     if (customListId == null) {
       throw core.ArgumentError('Parameter customListId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/customLists/' +
         commons.Escaper.ecapeVariableReserved('$customListId');
@@ -5919,25 +5650,14 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/customLists';
 
@@ -5991,16 +5711,11 @@
       throw core.ArgumentError(
           'Parameter firstAndThirdPartyAudienceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/firstAndThirdPartyAudiences/' +
         commons.Escaper.ecapeVariableReserved('$firstAndThirdPartyAudienceId');
@@ -6069,28 +5784,15 @@
     core.String partnerId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/firstAndThirdPartyAudiences';
 
@@ -6137,13 +5839,10 @@
     if (floodlightGroupId == null) {
       throw core.ArgumentError('Parameter floodlightGroupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/floodlightGroups/' +
         commons.Escaper.ecapeVariableReserved('$floodlightGroupId');
@@ -6195,16 +5894,11 @@
     if (floodlightGroupId == null) {
       throw core.ArgumentError('Parameter floodlightGroupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (partnerId != null) 'partnerId': [partnerId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/floodlightGroups/' +
         commons.Escaper.ecapeVariable('$floodlightGroupId');
@@ -6257,16 +5951,11 @@
     if (googleAudienceId == null) {
       throw core.ArgumentError('Parameter googleAudienceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/googleAudiences/' +
         commons.Escaper.ecapeVariableReserved('$googleAudienceId');
@@ -6333,28 +6022,15 @@
     core.String partnerId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/googleAudiences';
 
@@ -6412,16 +6088,11 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/inventorySourceGroups';
 
@@ -6468,16 +6139,11 @@
     if (inventorySourceGroupId == null) {
       throw core.ArgumentError('Parameter inventorySourceGroupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/inventorySourceGroups/' +
         commons.Escaper.ecapeVariableReserved('$inventorySourceGroupId');
@@ -6525,16 +6191,11 @@
     if (inventorySourceGroupId == null) {
       throw core.ArgumentError('Parameter inventorySourceGroupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/inventorySourceGroups/' +
         commons.Escaper.ecapeVariableReserved('$inventorySourceGroupId');
@@ -6602,28 +6263,15 @@
     core.String partnerId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/inventorySourceGroups';
 
@@ -6678,19 +6326,12 @@
     if (inventorySourceGroupId == null) {
       throw core.ArgumentError('Parameter inventorySourceGroupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/inventorySourceGroups/' +
         commons.Escaper.ecapeVariable('$inventorySourceGroupId');
@@ -6749,10 +6390,9 @@
     if (inventorySourceGroupId == null) {
       throw core.ArgumentError('Parameter inventorySourceGroupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/inventorySourceGroups/' +
         commons.Escaper.ecapeVariableReserved('$inventorySourceGroupId') +
@@ -6809,16 +6449,11 @@
     if (inventorySourceGroupId == null) {
       throw core.ArgumentError('Parameter inventorySourceGroupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/inventorySourceGroups/' +
         commons.Escaper.ecapeVariableReserved('$inventorySourceGroupId') +
@@ -6879,16 +6514,11 @@
       throw core.ArgumentError(
           'Parameter assignedInventorySourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/inventorySourceGroups/' +
         commons.Escaper.ecapeVariableReserved('$inventorySourceGroupId') +
@@ -6965,28 +6595,15 @@
     if (inventorySourceGroupId == null) {
       throw core.ArgumentError('Parameter inventorySourceGroupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/inventorySourceGroups/' +
         commons.Escaper.ecapeVariableReserved('$inventorySourceGroupId') +
@@ -7035,13 +6652,10 @@
     if (inventorySourceId == null) {
       throw core.ArgumentError('Parameter inventorySourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/inventorySources/' +
         commons.Escaper.ecapeVariableReserved('$inventorySourceId');
@@ -7113,28 +6727,15 @@
     core.String partnerId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerId != null) {
-      _queryParams['partnerId'] = [partnerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerId != null) 'partnerId': [partnerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/inventorySources';
 
@@ -7191,10 +6792,9 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'download/' + commons.Escaper.ecapeVariableReserved('$resourceName');
@@ -7259,10 +6859,9 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -7302,10 +6901,9 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/partners/' + commons.Escaper.ecapeVariableReserved('$partnerId');
@@ -7363,22 +6961,13 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/partners';
 
@@ -7434,13 +7023,10 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -7489,13 +7075,10 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -7563,25 +7146,14 @@
     if (partnerId == null) {
       throw core.ArgumentError('Parameter partnerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -7640,16 +7212,11 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -7712,10 +7279,9 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariable('$partnerId') +
@@ -7772,13 +7338,10 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariable('$partnerId') +
@@ -7836,13 +7399,10 @@
     if (urlOrAppId == null) {
       throw core.ArgumentError('Parameter urlOrAppId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariable('$partnerId') +
@@ -7919,25 +7479,14 @@
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -8091,10 +7640,9 @@
     if (targetingType == null) {
       throw core.ArgumentError('Parameter targetingType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -8232,10 +7780,9 @@
       throw core.ArgumentError(
           'Parameter assignedTargetingOptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -8373,10 +7920,9 @@
       throw core.ArgumentError(
           'Parameter assignedTargetingOptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -8532,22 +8078,13 @@
     if (targetingType == null) {
       throw core.ArgumentError('Parameter targetingType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/partners/' +
         commons.Escaper.ecapeVariableReserved('$partnerId') +
@@ -8603,10 +8140,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/sdfdownloadtasks';
 
@@ -8652,10 +8188,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -8798,13 +8333,10 @@
     if (targetingOptionId == null) {
       throw core.ArgumentError('Parameter targetingOptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/targetingTypes/' +
         commons.Escaper.ecapeVariableReserved('$targetingType') +
@@ -8960,25 +8492,14 @@
     if (targetingType == null) {
       throw core.ArgumentError('Parameter targetingType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (advertiserId != null) {
-      _queryParams['advertiserId'] = [advertiserId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (advertiserId != null) 'advertiserId': [advertiserId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/targetingTypes/' +
         commons.Escaper.ecapeVariableReserved('$targetingType') +
@@ -9103,10 +8624,9 @@
     if (targetingType == null) {
       throw core.ArgumentError('Parameter targetingType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/targetingTypes/' +
         commons.Escaper.ecapeVariableReserved('$targetingType') +
@@ -9163,10 +8683,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/users/' +
         commons.Escaper.ecapeVariableReserved('$userId') +
@@ -9206,10 +8725,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/users';
 
@@ -9246,10 +8764,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/users/' + commons.Escaper.ecapeVariableReserved('$userId');
 
@@ -9285,10 +8802,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/users/' + commons.Escaper.ecapeVariableReserved('$userId');
 
@@ -9361,22 +8877,13 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/users';
 
@@ -9423,13 +8930,10 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/users/' + commons.Escaper.ecapeVariableReserved('$userId');
 
diff --git a/generated/googleapis/lib/dlp/v2.dart b/generated/googleapis/lib/dlp/v2.dart
index eb1420b..a95c5ac 100644
--- a/generated/googleapis/lib/dlp/v2.dart
+++ b/generated/googleapis/lib/dlp/v2.dart
@@ -130,22 +130,13 @@
     core.String parent,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (locationId != null) 'locationId': [locationId],
+      if (parent != null) 'parent': [parent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/infoTypes';
 
@@ -213,19 +204,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (locationId != null) 'locationId': [locationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/infoTypes';
@@ -307,10 +291,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -357,10 +340,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -404,10 +386,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -480,22 +461,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -546,10 +518,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -615,10 +586,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -664,10 +634,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -710,10 +679,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -785,22 +753,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -849,10 +808,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -937,10 +895,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -987,10 +944,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1034,10 +990,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1110,22 +1065,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1176,10 +1122,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1281,28 +1226,15 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/dlpJobs';
@@ -1368,10 +1300,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1417,10 +1348,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1463,10 +1393,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1538,22 +1467,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1602,10 +1522,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1667,10 +1586,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1714,10 +1632,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1758,10 +1675,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1848,25 +1764,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1914,10 +1819,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1983,10 +1887,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2033,10 +1936,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2079,10 +1981,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2156,22 +2057,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2222,10 +2114,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2291,10 +2182,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2340,10 +2230,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2385,10 +2274,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2462,22 +2350,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2527,10 +2406,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2614,10 +2492,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2678,10 +2555,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2739,10 +2615,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2811,10 +2686,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2860,10 +2734,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2906,10 +2779,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2982,22 +2854,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3047,10 +2910,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3103,10 +2965,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -3165,10 +3026,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/dlpJobs';
@@ -3212,10 +3072,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3255,10 +3114,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3352,28 +3210,15 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/dlpJobs';
@@ -3438,10 +3283,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3509,10 +3353,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3557,10 +3400,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3602,10 +3444,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3677,22 +3518,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3740,10 +3572,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3797,10 +3628,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':activate';
@@ -3856,10 +3686,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3902,10 +3731,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3945,10 +3773,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4035,25 +3862,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4100,10 +3916,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4189,10 +4004,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4253,10 +4067,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4314,10 +4127,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4386,10 +4198,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4436,10 +4247,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4483,10 +4293,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4559,22 +4368,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4625,10 +4425,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4683,10 +4482,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -4745,10 +4543,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/dlpJobs';
@@ -4793,10 +4590,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4842,10 +4638,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':finish';
@@ -4888,10 +4683,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4938,10 +4732,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -5038,28 +4831,15 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/dlpJobs';
@@ -5125,10 +4905,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5196,10 +4975,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5245,10 +5023,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5291,10 +5068,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5366,22 +5142,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5430,10 +5197,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5488,10 +5254,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':activate';
@@ -5547,10 +5312,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5594,10 +5358,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5638,10 +5401,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5688,10 +5450,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -5781,25 +5542,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5847,10 +5597,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5916,10 +5665,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5966,10 +5714,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6012,10 +5759,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6089,22 +5835,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -6155,10 +5892,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6224,10 +5960,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -6273,10 +6008,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6318,10 +6052,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6395,22 +6128,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locationId != null) {
-      _queryParams['locationId'] = [locationId];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locationId != null) 'locationId': [locationId],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -6460,10 +6184,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/dns/v1.dart b/generated/googleapis/lib/dns/v1.dart
index d36957d..0674bc9 100644
--- a/generated/googleapis/lib/dns/v1.dart
+++ b/generated/googleapis/lib/dns/v1.dart
@@ -122,13 +122,10 @@
     if (managedZone == null) {
       throw core.ArgumentError('Parameter managedZone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -187,13 +184,10 @@
     if (changeId == null) {
       throw core.ArgumentError('Parameter changeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -256,22 +250,13 @@
     if (managedZone == null) {
       throw core.ArgumentError('Parameter managedZone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (sortBy != null) {
-      _queryParams['sortBy'] = [sortBy];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (sortBy != null) 'sortBy': [sortBy],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -340,16 +325,11 @@
     if (dnsKeyId == null) {
       throw core.ArgumentError('Parameter dnsKeyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if (digestType != null) {
-      _queryParams['digestType'] = [digestType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if (digestType != null) 'digestType': [digestType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -409,19 +389,12 @@
     if (managedZone == null) {
       throw core.ArgumentError('Parameter managedZone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (digestType != null) {
-      _queryParams['digestType'] = [digestType];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (digestType != null) 'digestType': [digestType],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -485,13 +458,10 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -552,19 +522,12 @@
     if (managedZone == null) {
       throw core.ArgumentError('Parameter managedZone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (sortBy != null) {
-      _queryParams['sortBy'] = [sortBy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (sortBy != null) 'sortBy': [sortBy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -620,13 +583,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -675,13 +635,10 @@
     if (managedZone == null) {
       throw core.ArgumentError('Parameter managedZone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -731,13 +688,10 @@
     if (managedZone == null) {
       throw core.ArgumentError('Parameter managedZone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -787,19 +741,12 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dnsName != null) {
-      _queryParams['dnsName'] = [dnsName];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dnsName != null) 'dnsName': [dnsName],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -854,13 +801,10 @@
     if (managedZone == null) {
       throw core.ArgumentError('Parameter managedZone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -916,13 +860,10 @@
     if (managedZone == null) {
       throw core.ArgumentError('Parameter managedZone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -977,13 +918,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1033,13 +971,10 @@
     if (policy == null) {
       throw core.ArgumentError('Parameter policy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1089,13 +1024,10 @@
     if (policy == null) {
       throw core.ArgumentError('Parameter policy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1141,16 +1073,11 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1205,13 +1132,10 @@
     if (policy == null) {
       throw core.ArgumentError('Parameter policy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1268,13 +1192,10 @@
     if (policy == null) {
       throw core.ArgumentError('Parameter policy is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1325,13 +1246,10 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientOperationId != null) {
-      _queryParams['clientOperationId'] = [clientOperationId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientOperationId != null) 'clientOperationId': [clientOperationId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' + commons.Escaper.ecapeVariable('$project');
 
@@ -1395,22 +1313,13 @@
     if (managedZone == null) {
       throw core.ArgumentError('Parameter managedZone is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (name != null) 'name': [name],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'dns/v1/projects/' +
         commons.Escaper.ecapeVariable('$project') +
diff --git a/generated/googleapis/lib/docs/v1.dart b/generated/googleapis/lib/docs/v1.dart
index beb2c2b..0382396 100644
--- a/generated/googleapis/lib/docs/v1.dart
+++ b/generated/googleapis/lib/docs/v1.dart
@@ -115,10 +115,9 @@
     if (documentId == null) {
       throw core.ArgumentError('Parameter documentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/documents/' +
         commons.Escaper.ecapeVariable('$documentId') +
@@ -159,10 +158,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/documents';
 
@@ -220,13 +218,11 @@
     if (documentId == null) {
       throw core.ArgumentError('Parameter documentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (suggestionsViewMode != null) {
-      _queryParams['suggestionsViewMode'] = [suggestionsViewMode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (suggestionsViewMode != null)
+        'suggestionsViewMode': [suggestionsViewMode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/documents/' + commons.Escaper.ecapeVariable('$documentId');
 
diff --git a/generated/googleapis/lib/domainsrdap/v1.dart b/generated/googleapis/lib/domainsrdap/v1.dart
index 834e8ad..eab372c 100644
--- a/generated/googleapis/lib/domainsrdap/v1.dart
+++ b/generated/googleapis/lib/domainsrdap/v1.dart
@@ -93,10 +93,9 @@
     if (autnumId == null) {
       throw core.ArgumentError('Parameter autnumId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/autnum/' + commons.Escaper.ecapeVariable('$autnumId');
 
@@ -139,10 +138,9 @@
     if (domainName == null) {
       throw core.ArgumentError('Parameter domainName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/domain/' + commons.Escaper.ecapeVariableReserved('$domainName');
@@ -187,10 +185,9 @@
     if (entityId == null) {
       throw core.ArgumentError('Parameter entityId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/entity/' + commons.Escaper.ecapeVariable('$entityId');
 
@@ -241,10 +238,9 @@
     if (ipId1 == null) {
       throw core.ArgumentError('Parameter ipId1 is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/ip/' +
         commons.Escaper.ecapeVariable('$ipId') +
@@ -292,10 +288,9 @@
     if (nameserverId == null) {
       throw core.ArgumentError('Parameter nameserverId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/nameserver/' + commons.Escaper.ecapeVariable('$nameserverId');
@@ -335,10 +330,9 @@
   async.Future<RdapResponse> getDomains({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/domains';
 
@@ -371,10 +365,9 @@
   async.Future<RdapResponse> getEntities({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/entities';
 
@@ -404,10 +397,9 @@
   async.Future<HttpBody> getHelp({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/help';
 
@@ -439,10 +431,9 @@
   async.Future<HttpBody> getIp({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/ip';
 
@@ -474,10 +465,9 @@
   async.Future<RdapResponse> getNameservers({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/nameservers';
 
diff --git a/generated/googleapis/lib/doubleclickbidmanager/v1_1.dart b/generated/googleapis/lib/doubleclickbidmanager/v1_1.dart
index 6edd189..ce1d7f5 100644
--- a/generated/googleapis/lib/doubleclickbidmanager/v1_1.dart
+++ b/generated/googleapis/lib/doubleclickbidmanager/v1_1.dart
@@ -91,10 +91,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'lineitems/downloadlineitems';
 
@@ -132,10 +131,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'lineitems/uploadlineitems';
 
@@ -181,13 +179,10 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (asynchronous != null) {
-      _queryParams['asynchronous'] = ['${asynchronous}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (asynchronous != null) 'asynchronous': ['${asynchronous}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'query';
 
@@ -221,10 +216,9 @@
     if (queryId == null) {
       throw core.ArgumentError('Parameter queryId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'query/' + commons.Escaper.ecapeVariable('$queryId');
 
@@ -259,10 +253,9 @@
     if (queryId == null) {
       throw core.ArgumentError('Parameter queryId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'query/' + commons.Escaper.ecapeVariable('$queryId');
 
@@ -298,16 +291,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'queries';
 
@@ -349,13 +337,10 @@
     if (queryId == null) {
       throw core.ArgumentError('Parameter queryId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (asynchronous != null) {
-      _queryParams['asynchronous'] = ['${asynchronous}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (asynchronous != null) 'asynchronous': ['${asynchronous}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'query/' + commons.Escaper.ecapeVariable('$queryId');
 
@@ -404,16 +389,11 @@
     if (queryId == null) {
       throw core.ArgumentError('Parameter queryId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'queries/' + commons.Escaper.ecapeVariable('$queryId') + '/reports';
@@ -455,10 +435,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'sdf/download';
 
diff --git a/generated/googleapis/lib/doubleclicksearch/v2.dart b/generated/googleapis/lib/doubleclicksearch/v2.dart
index 34b1eaa..9de3de1 100644
--- a/generated/googleapis/lib/doubleclicksearch/v2.dart
+++ b/generated/googleapis/lib/doubleclicksearch/v2.dart
@@ -139,38 +139,29 @@
     if (engineAccountId == null) {
       throw core.ArgumentError('Parameter engineAccountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (endDate == null) {
       throw core.ArgumentError('Parameter endDate is required.');
     }
-    _queryParams['endDate'] = ['${endDate}'];
     if (rowCount == null) {
       throw core.ArgumentError('Parameter rowCount is required.');
     }
-    _queryParams['rowCount'] = ['${rowCount}'];
     if (startDate == null) {
       throw core.ArgumentError('Parameter startDate is required.');
     }
-    _queryParams['startDate'] = ['${startDate}'];
     if (startRow == null) {
       throw core.ArgumentError('Parameter startRow is required.');
     }
-    _queryParams['startRow'] = ['${startRow}'];
-    if (adGroupId != null) {
-      _queryParams['adGroupId'] = [adGroupId];
-    }
-    if (adId != null) {
-      _queryParams['adId'] = [adId];
-    }
-    if (campaignId != null) {
-      _queryParams['campaignId'] = [campaignId];
-    }
-    if (criterionId != null) {
-      _queryParams['criterionId'] = [criterionId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'endDate': ['${endDate}'],
+      'rowCount': ['${rowCount}'],
+      'startDate': ['${startDate}'],
+      'startRow': ['${startRow}'],
+      if (adGroupId != null) 'adGroupId': [adGroupId],
+      if (adId != null) 'adId': [adId],
+      if (campaignId != null) 'campaignId': [campaignId],
+      if (criterionId != null) 'criterionId': [criterionId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'doubleclicksearch/v2/agency/' +
         commons.Escaper.ecapeVariable('$agencyId') +
@@ -211,10 +202,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'doubleclicksearch/v2/conversion';
 
@@ -250,10 +240,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'doubleclicksearch/v2/conversion';
 
@@ -290,10 +279,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'doubleclicksearch/v2/conversion/updateAvailability';
 
@@ -335,10 +323,9 @@
   }) async {
     final _body =
         request_1 == null ? null : convert.json.encode(request_1.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'doubleclicksearch/v2/reports/generate';
 
@@ -374,10 +361,9 @@
     if (reportId == null) {
       throw core.ArgumentError('Parameter reportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'doubleclicksearch/v2/reports/' +
         commons.Escaper.ecapeVariable('$reportId');
@@ -422,10 +408,9 @@
     if (reportFragment == null) {
       throw core.ArgumentError('Parameter reportFragment is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'doubleclicksearch/v2/reports/' +
         commons.Escaper.ecapeVariable('$reportId') +
@@ -468,10 +453,9 @@
   }) async {
     final _body =
         request_1 == null ? null : convert.json.encode(request_1.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'doubleclicksearch/v2/reports';
 
@@ -519,10 +503,9 @@
     if (advertiserId == null) {
       throw core.ArgumentError('Parameter advertiserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'doubleclicksearch/v2/agency/' +
         commons.Escaper.ecapeVariable('$agencyId') +
diff --git a/generated/googleapis/lib/drive/v2.dart b/generated/googleapis/lib/drive/v2.dart
index b4b7351..001ae76 100644
--- a/generated/googleapis/lib/drive/v2.dart
+++ b/generated/googleapis/lib/drive/v2.dart
@@ -156,19 +156,13 @@
     core.String startChangeId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeSubscribed != null) {
-      _queryParams['includeSubscribed'] = ['${includeSubscribed}'];
-    }
-    if (maxChangeIdCount != null) {
-      _queryParams['maxChangeIdCount'] = [maxChangeIdCount];
-    }
-    if (startChangeId != null) {
-      _queryParams['startChangeId'] = [startChangeId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeSubscribed != null)
+        'includeSubscribed': ['${includeSubscribed}'],
+      if (maxChangeIdCount != null) 'maxChangeIdCount': [maxChangeIdCount],
+      if (startChangeId != null) 'startChangeId': [startChangeId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'about';
 
@@ -209,10 +203,9 @@
     if (appId == null) {
       throw core.ArgumentError('Parameter appId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/' + commons.Escaper.ecapeVariable('$appId');
 
@@ -260,19 +253,14 @@
     core.String languageCode,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (appFilterExtensions != null) {
-      _queryParams['appFilterExtensions'] = [appFilterExtensions];
-    }
-    if (appFilterMimeTypes != null) {
-      _queryParams['appFilterMimeTypes'] = [appFilterMimeTypes];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (appFilterExtensions != null)
+        'appFilterExtensions': [appFilterExtensions],
+      if (appFilterMimeTypes != null)
+        'appFilterMimeTypes': [appFilterMimeTypes],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'apps';
 
@@ -327,22 +315,15 @@
     if (changeId == null) {
       throw core.ArgumentError('Parameter changeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (driveId != null) {
-      _queryParams['driveId'] = [driveId];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (teamDriveId != null) {
-      _queryParams['teamDriveId'] = [teamDriveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (driveId != null) 'driveId': [driveId],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (teamDriveId != null) 'teamDriveId': [teamDriveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'changes/' + commons.Escaper.ecapeVariable('$changeId');
 
@@ -385,22 +366,15 @@
     core.String teamDriveId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (driveId != null) {
-      _queryParams['driveId'] = [driveId];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (teamDriveId != null) {
-      _queryParams['teamDriveId'] = [teamDriveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (driveId != null) 'driveId': [driveId],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (teamDriveId != null) 'teamDriveId': [teamDriveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'changes/startPageToken';
 
@@ -489,54 +463,30 @@
     core.String teamDriveId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (driveId != null) {
-      _queryParams['driveId'] = [driveId];
-    }
-    if (includeCorpusRemovals != null) {
-      _queryParams['includeCorpusRemovals'] = ['${includeCorpusRemovals}'];
-    }
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if (includeItemsFromAllDrives != null) {
-      _queryParams['includeItemsFromAllDrives'] = [
-        '${includeItemsFromAllDrives}'
-      ];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (includeSubscribed != null) {
-      _queryParams['includeSubscribed'] = ['${includeSubscribed}'];
-    }
-    if (includeTeamDriveItems != null) {
-      _queryParams['includeTeamDriveItems'] = ['${includeTeamDriveItems}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (spaces != null) {
-      _queryParams['spaces'] = [spaces];
-    }
-    if (startChangeId != null) {
-      _queryParams['startChangeId'] = [startChangeId];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (teamDriveId != null) {
-      _queryParams['teamDriveId'] = [teamDriveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (driveId != null) 'driveId': [driveId],
+      if (includeCorpusRemovals != null)
+        'includeCorpusRemovals': ['${includeCorpusRemovals}'],
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if (includeItemsFromAllDrives != null)
+        'includeItemsFromAllDrives': ['${includeItemsFromAllDrives}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (includeSubscribed != null)
+        'includeSubscribed': ['${includeSubscribed}'],
+      if (includeTeamDriveItems != null)
+        'includeTeamDriveItems': ['${includeTeamDriveItems}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (spaces != null) 'spaces': [spaces],
+      if (startChangeId != null) 'startChangeId': [startChangeId],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (teamDriveId != null) 'teamDriveId': [teamDriveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'changes';
 
@@ -630,54 +580,30 @@
   }) async {
     final _body =
         request == null ? null : convert_1.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (driveId != null) {
-      _queryParams['driveId'] = [driveId];
-    }
-    if (includeCorpusRemovals != null) {
-      _queryParams['includeCorpusRemovals'] = ['${includeCorpusRemovals}'];
-    }
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if (includeItemsFromAllDrives != null) {
-      _queryParams['includeItemsFromAllDrives'] = [
-        '${includeItemsFromAllDrives}'
-      ];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (includeSubscribed != null) {
-      _queryParams['includeSubscribed'] = ['${includeSubscribed}'];
-    }
-    if (includeTeamDriveItems != null) {
-      _queryParams['includeTeamDriveItems'] = ['${includeTeamDriveItems}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (spaces != null) {
-      _queryParams['spaces'] = [spaces];
-    }
-    if (startChangeId != null) {
-      _queryParams['startChangeId'] = [startChangeId];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (teamDriveId != null) {
-      _queryParams['teamDriveId'] = [teamDriveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (driveId != null) 'driveId': [driveId],
+      if (includeCorpusRemovals != null)
+        'includeCorpusRemovals': ['${includeCorpusRemovals}'],
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if (includeItemsFromAllDrives != null)
+        'includeItemsFromAllDrives': ['${includeItemsFromAllDrives}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (includeSubscribed != null)
+        'includeSubscribed': ['${includeSubscribed}'],
+      if (includeTeamDriveItems != null)
+        'includeTeamDriveItems': ['${includeTeamDriveItems}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (spaces != null) 'spaces': [spaces],
+      if (startChangeId != null) 'startChangeId': [startChangeId],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (teamDriveId != null) 'teamDriveId': [teamDriveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'changes/watch';
 
@@ -716,10 +642,9 @@
   }) async {
     final _body =
         request == null ? null : convert_1.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'channels/stop';
 
@@ -770,13 +695,11 @@
     if (childId == null) {
       throw core.ArgumentError('Parameter childId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$folderId') +
@@ -820,10 +743,9 @@
     if (childId == null) {
       throw core.ArgumentError('Parameter childId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$folderId') +
@@ -878,19 +800,15 @@
     if (folderId == null) {
       throw core.ArgumentError('Parameter folderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$folderId') + '/children';
@@ -947,22 +865,13 @@
     if (folderId == null) {
       throw core.ArgumentError('Parameter folderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (q != null) 'q': [q],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$folderId') + '/children';
@@ -1008,10 +917,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -1059,13 +967,10 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -1108,10 +1013,9 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/comments';
@@ -1166,22 +1070,13 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (updatedMin != null) {
-      _queryParams['updatedMin'] = [updatedMin];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (updatedMin != null) 'updatedMin': [updatedMin],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/comments';
@@ -1229,10 +1124,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -1282,10 +1176,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -1330,10 +1223,9 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'drives/' + commons.Escaper.ecapeVariable('$driveId');
 
@@ -1373,13 +1265,11 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'drives/' + commons.Escaper.ecapeVariable('$driveId');
 
@@ -1414,10 +1304,9 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'drives/' + commons.Escaper.ecapeVariable('$driveId') + '/hide';
@@ -1459,14 +1348,13 @@
   }) async {
     final _body =
         request == null ? null : convert_1.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (requestId == null) {
       throw core.ArgumentError('Parameter requestId is required.');
     }
-    _queryParams['requestId'] = [requestId];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'drives';
 
@@ -1511,22 +1399,14 @@
     core.bool useDomainAdminAccess,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (q != null) 'q': [q],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'drives';
 
@@ -1561,10 +1441,9 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'drives/' + commons.Escaper.ecapeVariable('$driveId') + '/unhide';
@@ -1610,13 +1489,11 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'drives/' + commons.Escaper.ecapeVariable('$driveId');
 
@@ -1709,43 +1586,25 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (convert != null) {
-      _queryParams['convert'] = ['${convert}'];
-    }
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (ocr != null) {
-      _queryParams['ocr'] = ['${ocr}'];
-    }
-    if (ocrLanguage != null) {
-      _queryParams['ocrLanguage'] = [ocrLanguage];
-    }
-    if (pinned != null) {
-      _queryParams['pinned'] = ['${pinned}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (timedTextLanguage != null) {
-      _queryParams['timedTextLanguage'] = [timedTextLanguage];
-    }
-    if (timedTextTrackName != null) {
-      _queryParams['timedTextTrackName'] = [timedTextTrackName];
-    }
-    if (visibility != null) {
-      _queryParams['visibility'] = [visibility];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (convert != null) 'convert': ['${convert}'],
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (ocr != null) 'ocr': ['${ocr}'],
+      if (ocrLanguage != null) 'ocrLanguage': [ocrLanguage],
+      if (pinned != null) 'pinned': ['${pinned}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (timedTextLanguage != null) 'timedTextLanguage': [timedTextLanguage],
+      if (timedTextTrackName != null)
+        'timedTextTrackName': [timedTextTrackName],
+      if (visibility != null) 'visibility': [visibility],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId') + '/copy';
 
@@ -1794,19 +1653,15 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId');
 
@@ -1838,13 +1693,11 @@
     core.bool enforceSingleParent,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'files/trash';
 
@@ -1888,14 +1741,13 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (mimeType == null) {
       throw core.ArgumentError('Parameter mimeType is required.');
     }
-    _queryParams['mimeType'] = [mimeType];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'mimeType': [mimeType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/export';
@@ -1940,16 +1792,11 @@
     core.String space,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (space != null) {
-      _queryParams['space'] = [space];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (space != null) 'space': [space],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'files/generateIds';
 
@@ -2024,31 +1871,19 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acknowledgeAbuse != null) {
-      _queryParams['acknowledgeAbuse'] = ['${acknowledgeAbuse}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (revisionId != null) {
-      _queryParams['revisionId'] = [revisionId];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (updateViewedDate != null) {
-      _queryParams['updateViewedDate'] = ['${updateViewedDate}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acknowledgeAbuse != null) 'acknowledgeAbuse': ['${acknowledgeAbuse}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (projection != null) 'projection': [projection],
+      if (revisionId != null) 'revisionId': [revisionId],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (updateViewedDate != null) 'updateViewedDate': ['${updateViewedDate}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId');
 
@@ -2144,48 +1979,27 @@
   }) async {
     final _body =
         request == null ? null : convert_1.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (convert != null) {
-      _queryParams['convert'] = ['${convert}'];
-    }
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (ocr != null) {
-      _queryParams['ocr'] = ['${ocr}'];
-    }
-    if (ocrLanguage != null) {
-      _queryParams['ocrLanguage'] = [ocrLanguage];
-    }
-    if (pinned != null) {
-      _queryParams['pinned'] = ['${pinned}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (timedTextLanguage != null) {
-      _queryParams['timedTextLanguage'] = [timedTextLanguage];
-    }
-    if (timedTextTrackName != null) {
-      _queryParams['timedTextTrackName'] = [timedTextTrackName];
-    }
-    if (useContentAsIndexableText != null) {
-      _queryParams['useContentAsIndexableText'] = [
-        '${useContentAsIndexableText}'
-      ];
-    }
-    if (visibility != null) {
-      _queryParams['visibility'] = [visibility];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (convert != null) 'convert': ['${convert}'],
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (ocr != null) 'ocr': ['${ocr}'],
+      if (ocrLanguage != null) 'ocrLanguage': [ocrLanguage],
+      if (pinned != null) 'pinned': ['${pinned}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (timedTextLanguage != null) 'timedTextLanguage': [timedTextLanguage],
+      if (timedTextTrackName != null)
+        'timedTextTrackName': [timedTextTrackName],
+      if (useContentAsIndexableText != null)
+        'useContentAsIndexableText': ['${useContentAsIndexableText}'],
+      if (visibility != null) 'visibility': [visibility],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -2296,57 +2110,29 @@
     core.String teamDriveId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (corpora != null) {
-      _queryParams['corpora'] = [corpora];
-    }
-    if (corpus != null) {
-      _queryParams['corpus'] = [corpus];
-    }
-    if (driveId != null) {
-      _queryParams['driveId'] = [driveId];
-    }
-    if (includeItemsFromAllDrives != null) {
-      _queryParams['includeItemsFromAllDrives'] = [
-        '${includeItemsFromAllDrives}'
-      ];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (includeTeamDriveItems != null) {
-      _queryParams['includeTeamDriveItems'] = ['${includeTeamDriveItems}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (spaces != null) {
-      _queryParams['spaces'] = [spaces];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (teamDriveId != null) {
-      _queryParams['teamDriveId'] = [teamDriveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (corpora != null) 'corpora': [corpora],
+      if (corpus != null) 'corpus': [corpus],
+      if (driveId != null) 'driveId': [driveId],
+      if (includeItemsFromAllDrives != null)
+        'includeItemsFromAllDrives': ['${includeItemsFromAllDrives}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (includeTeamDriveItems != null)
+        'includeTeamDriveItems': ['${includeTeamDriveItems}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (projection != null) 'projection': [projection],
+      if (q != null) 'q': [q],
+      if (spaces != null) 'spaces': [spaces],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (teamDriveId != null) 'teamDriveId': [teamDriveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'files';
 
@@ -2470,63 +2256,33 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (addParents != null) {
-      _queryParams['addParents'] = [addParents];
-    }
-    if (convert != null) {
-      _queryParams['convert'] = ['${convert}'];
-    }
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (modifiedDateBehavior != null) {
-      _queryParams['modifiedDateBehavior'] = [modifiedDateBehavior];
-    }
-    if (newRevision != null) {
-      _queryParams['newRevision'] = ['${newRevision}'];
-    }
-    if (ocr != null) {
-      _queryParams['ocr'] = ['${ocr}'];
-    }
-    if (ocrLanguage != null) {
-      _queryParams['ocrLanguage'] = [ocrLanguage];
-    }
-    if (pinned != null) {
-      _queryParams['pinned'] = ['${pinned}'];
-    }
-    if (removeParents != null) {
-      _queryParams['removeParents'] = [removeParents];
-    }
-    if (setModifiedDate != null) {
-      _queryParams['setModifiedDate'] = ['${setModifiedDate}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (timedTextLanguage != null) {
-      _queryParams['timedTextLanguage'] = [timedTextLanguage];
-    }
-    if (timedTextTrackName != null) {
-      _queryParams['timedTextTrackName'] = [timedTextTrackName];
-    }
-    if (updateViewedDate != null) {
-      _queryParams['updateViewedDate'] = ['${updateViewedDate}'];
-    }
-    if (useContentAsIndexableText != null) {
-      _queryParams['useContentAsIndexableText'] = [
-        '${useContentAsIndexableText}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (addParents != null) 'addParents': [addParents],
+      if (convert != null) 'convert': ['${convert}'],
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (modifiedDateBehavior != null)
+        'modifiedDateBehavior': [modifiedDateBehavior],
+      if (newRevision != null) 'newRevision': ['${newRevision}'],
+      if (ocr != null) 'ocr': ['${ocr}'],
+      if (ocrLanguage != null) 'ocrLanguage': [ocrLanguage],
+      if (pinned != null) 'pinned': ['${pinned}'],
+      if (removeParents != null) 'removeParents': [removeParents],
+      if (setModifiedDate != null) 'setModifiedDate': ['${setModifiedDate}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (timedTextLanguage != null) 'timedTextLanguage': [timedTextLanguage],
+      if (timedTextTrackName != null)
+        'timedTextTrackName': [timedTextTrackName],
+      if (updateViewedDate != null) 'updateViewedDate': ['${updateViewedDate}'],
+      if (useContentAsIndexableText != null)
+        'useContentAsIndexableText': ['${useContentAsIndexableText}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId');
 
@@ -2573,19 +2329,15 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId') + '/touch';
 
@@ -2638,19 +2390,15 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId') + '/trash';
 
@@ -2700,19 +2448,15 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/untrash';
@@ -2843,63 +2587,33 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (addParents != null) {
-      _queryParams['addParents'] = [addParents];
-    }
-    if (convert != null) {
-      _queryParams['convert'] = ['${convert}'];
-    }
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (modifiedDateBehavior != null) {
-      _queryParams['modifiedDateBehavior'] = [modifiedDateBehavior];
-    }
-    if (newRevision != null) {
-      _queryParams['newRevision'] = ['${newRevision}'];
-    }
-    if (ocr != null) {
-      _queryParams['ocr'] = ['${ocr}'];
-    }
-    if (ocrLanguage != null) {
-      _queryParams['ocrLanguage'] = [ocrLanguage];
-    }
-    if (pinned != null) {
-      _queryParams['pinned'] = ['${pinned}'];
-    }
-    if (removeParents != null) {
-      _queryParams['removeParents'] = [removeParents];
-    }
-    if (setModifiedDate != null) {
-      _queryParams['setModifiedDate'] = ['${setModifiedDate}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (timedTextLanguage != null) {
-      _queryParams['timedTextLanguage'] = [timedTextLanguage];
-    }
-    if (timedTextTrackName != null) {
-      _queryParams['timedTextTrackName'] = [timedTextTrackName];
-    }
-    if (updateViewedDate != null) {
-      _queryParams['updateViewedDate'] = ['${updateViewedDate}'];
-    }
-    if (useContentAsIndexableText != null) {
-      _queryParams['useContentAsIndexableText'] = [
-        '${useContentAsIndexableText}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (addParents != null) 'addParents': [addParents],
+      if (convert != null) 'convert': ['${convert}'],
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (modifiedDateBehavior != null)
+        'modifiedDateBehavior': [modifiedDateBehavior],
+      if (newRevision != null) 'newRevision': ['${newRevision}'],
+      if (ocr != null) 'ocr': ['${ocr}'],
+      if (ocrLanguage != null) 'ocrLanguage': [ocrLanguage],
+      if (pinned != null) 'pinned': ['${pinned}'],
+      if (removeParents != null) 'removeParents': [removeParents],
+      if (setModifiedDate != null) 'setModifiedDate': ['${setModifiedDate}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (timedTextLanguage != null) 'timedTextLanguage': [timedTextLanguage],
+      if (timedTextTrackName != null)
+        'timedTextTrackName': [timedTextTrackName],
+      if (updateViewedDate != null) 'updateViewedDate': ['${updateViewedDate}'],
+      if (useContentAsIndexableText != null)
+        'useContentAsIndexableText': ['${useContentAsIndexableText}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -2990,31 +2704,19 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acknowledgeAbuse != null) {
-      _queryParams['acknowledgeAbuse'] = ['${acknowledgeAbuse}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (revisionId != null) {
-      _queryParams['revisionId'] = [revisionId];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (updateViewedDate != null) {
-      _queryParams['updateViewedDate'] = ['${updateViewedDate}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acknowledgeAbuse != null) 'acknowledgeAbuse': ['${acknowledgeAbuse}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (projection != null) 'projection': [projection],
+      if (revisionId != null) 'revisionId': [revisionId],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (updateViewedDate != null) 'updateViewedDate': ['${updateViewedDate}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId') + '/watch';
 
@@ -3071,13 +2773,11 @@
     if (parentId == null) {
       throw core.ArgumentError('Parameter parentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -3121,10 +2821,9 @@
     if (parentId == null) {
       throw core.ArgumentError('Parameter parentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -3179,19 +2878,15 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/parents';
@@ -3229,10 +2924,9 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/parents';
@@ -3292,19 +2986,15 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -3361,19 +3051,15 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -3412,10 +3098,9 @@
     if (email == null) {
       throw core.ArgumentError('Parameter email is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'permissionIds/' + commons.Escaper.ecapeVariable('$email');
 
@@ -3488,31 +3173,22 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (emailMessage != null) {
-      _queryParams['emailMessage'] = [emailMessage];
-    }
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (moveToNewOwnersRoot != null) {
-      _queryParams['moveToNewOwnersRoot'] = ['${moveToNewOwnersRoot}'];
-    }
-    if (sendNotificationEmails != null) {
-      _queryParams['sendNotificationEmails'] = ['${sendNotificationEmails}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (emailMessage != null) 'emailMessage': [emailMessage],
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (moveToNewOwnersRoot != null)
+        'moveToNewOwnersRoot': ['${moveToNewOwnersRoot}'],
+      if (sendNotificationEmails != null)
+        'sendNotificationEmails': ['${sendNotificationEmails}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/permissions';
@@ -3579,28 +3255,19 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/permissions';
@@ -3669,25 +3336,18 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (removeExpiration != null) {
-      _queryParams['removeExpiration'] = ['${removeExpiration}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (transferOwnership != null) {
-      _queryParams['transferOwnership'] = ['${transferOwnership}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (removeExpiration != null) 'removeExpiration': ['${removeExpiration}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (transferOwnership != null)
+        'transferOwnership': ['${transferOwnership}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -3759,25 +3419,18 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (removeExpiration != null) {
-      _queryParams['removeExpiration'] = ['${removeExpiration}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (transferOwnership != null) {
-      _queryParams['transferOwnership'] = ['${transferOwnership}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (removeExpiration != null) 'removeExpiration': ['${removeExpiration}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (transferOwnership != null)
+        'transferOwnership': ['${transferOwnership}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -3830,13 +3483,10 @@
     if (propertyKey == null) {
       throw core.ArgumentError('Parameter propertyKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (visibility != null) {
-      _queryParams['visibility'] = [visibility];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (visibility != null) 'visibility': [visibility],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -3883,13 +3533,10 @@
     if (propertyKey == null) {
       throw core.ArgumentError('Parameter propertyKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (visibility != null) {
-      _queryParams['visibility'] = [visibility];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (visibility != null) 'visibility': [visibility],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -3932,10 +3579,9 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/properties';
@@ -3972,10 +3618,9 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/properties';
@@ -4027,13 +3672,10 @@
     if (propertyKey == null) {
       throw core.ArgumentError('Parameter propertyKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (visibility != null) {
-      _queryParams['visibility'] = [visibility];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (visibility != null) 'visibility': [visibility],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4087,13 +3729,10 @@
     if (propertyKey == null) {
       throw core.ArgumentError('Parameter propertyKey is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (visibility != null) {
-      _queryParams['visibility'] = [visibility];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (visibility != null) 'visibility': [visibility],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4148,10 +3787,9 @@
     if (replyId == null) {
       throw core.ArgumentError('Parameter replyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4207,13 +3845,10 @@
     if (replyId == null) {
       throw core.ArgumentError('Parameter replyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4265,10 +3900,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4329,19 +3963,12 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4398,10 +4025,9 @@
     if (replyId == null) {
       throw core.ArgumentError('Parameter replyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4460,10 +4086,9 @@
     if (replyId == null) {
       throw core.ArgumentError('Parameter replyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4519,10 +4144,9 @@
     if (revisionId == null) {
       throw core.ArgumentError('Parameter revisionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4566,10 +4190,9 @@
     if (revisionId == null) {
       throw core.ArgumentError('Parameter revisionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4616,16 +4239,11 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/revisions';
@@ -4673,10 +4291,9 @@
     if (revisionId == null) {
       throw core.ArgumentError('Parameter revisionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4726,10 +4343,9 @@
     if (revisionId == null) {
       throw core.ArgumentError('Parameter revisionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -4772,10 +4388,9 @@
     if (teamDriveId == null) {
       throw core.ArgumentError('Parameter teamDriveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'teamdrives/' + commons.Escaper.ecapeVariable('$teamDriveId');
 
@@ -4815,13 +4430,11 @@
     if (teamDriveId == null) {
       throw core.ArgumentError('Parameter teamDriveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'teamdrives/' + commons.Escaper.ecapeVariable('$teamDriveId');
 
@@ -4862,14 +4475,13 @@
   }) async {
     final _body =
         request == null ? null : convert_1.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (requestId == null) {
       throw core.ArgumentError('Parameter requestId is required.');
     }
-    _queryParams['requestId'] = [requestId];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'teamdrives';
 
@@ -4914,22 +4526,14 @@
     core.bool useDomainAdminAccess,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (q != null) 'q': [q],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'teamdrives';
 
@@ -4975,13 +4579,11 @@
     if (teamDriveId == null) {
       throw core.ArgumentError('Parameter teamDriveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'teamdrives/' + commons.Escaper.ecapeVariable('$teamDriveId');
 
diff --git a/generated/googleapis/lib/drive/v3.dart b/generated/googleapis/lib/drive/v3.dart
index 417a884..4b8c632 100644
--- a/generated/googleapis/lib/drive/v3.dart
+++ b/generated/googleapis/lib/drive/v3.dart
@@ -132,10 +132,9 @@
   async.Future<About> get({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'about';
 
@@ -184,22 +183,15 @@
     core.String teamDriveId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (driveId != null) {
-      _queryParams['driveId'] = [driveId];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (teamDriveId != null) {
-      _queryParams['teamDriveId'] = [teamDriveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (driveId != null) 'driveId': [driveId],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (teamDriveId != null) 'teamDriveId': [teamDriveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'changes/startPageToken';
 
@@ -286,52 +278,32 @@
     core.String teamDriveId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (pageToken == null) {
       throw core.ArgumentError('Parameter pageToken is required.');
     }
-    _queryParams['pageToken'] = [pageToken];
-    if (driveId != null) {
-      _queryParams['driveId'] = [driveId];
-    }
-    if (includeCorpusRemovals != null) {
-      _queryParams['includeCorpusRemovals'] = ['${includeCorpusRemovals}'];
-    }
-    if (includeItemsFromAllDrives != null) {
-      _queryParams['includeItemsFromAllDrives'] = [
-        '${includeItemsFromAllDrives}'
-      ];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (includeRemoved != null) {
-      _queryParams['includeRemoved'] = ['${includeRemoved}'];
-    }
-    if (includeTeamDriveItems != null) {
-      _queryParams['includeTeamDriveItems'] = ['${includeTeamDriveItems}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (restrictToMyDrive != null) {
-      _queryParams['restrictToMyDrive'] = ['${restrictToMyDrive}'];
-    }
-    if (spaces != null) {
-      _queryParams['spaces'] = [spaces];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (teamDriveId != null) {
-      _queryParams['teamDriveId'] = [teamDriveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'pageToken': [pageToken],
+      if (driveId != null) 'driveId': [driveId],
+      if (includeCorpusRemovals != null)
+        'includeCorpusRemovals': ['${includeCorpusRemovals}'],
+      if (includeItemsFromAllDrives != null)
+        'includeItemsFromAllDrives': ['${includeItemsFromAllDrives}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (includeRemoved != null) 'includeRemoved': ['${includeRemoved}'],
+      if (includeTeamDriveItems != null)
+        'includeTeamDriveItems': ['${includeTeamDriveItems}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (restrictToMyDrive != null)
+        'restrictToMyDrive': ['${restrictToMyDrive}'],
+      if (spaces != null) 'spaces': [spaces],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (teamDriveId != null) 'teamDriveId': [teamDriveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'changes';
 
@@ -423,52 +395,32 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (pageToken == null) {
       throw core.ArgumentError('Parameter pageToken is required.');
     }
-    _queryParams['pageToken'] = [pageToken];
-    if (driveId != null) {
-      _queryParams['driveId'] = [driveId];
-    }
-    if (includeCorpusRemovals != null) {
-      _queryParams['includeCorpusRemovals'] = ['${includeCorpusRemovals}'];
-    }
-    if (includeItemsFromAllDrives != null) {
-      _queryParams['includeItemsFromAllDrives'] = [
-        '${includeItemsFromAllDrives}'
-      ];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (includeRemoved != null) {
-      _queryParams['includeRemoved'] = ['${includeRemoved}'];
-    }
-    if (includeTeamDriveItems != null) {
-      _queryParams['includeTeamDriveItems'] = ['${includeTeamDriveItems}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (restrictToMyDrive != null) {
-      _queryParams['restrictToMyDrive'] = ['${restrictToMyDrive}'];
-    }
-    if (spaces != null) {
-      _queryParams['spaces'] = [spaces];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (teamDriveId != null) {
-      _queryParams['teamDriveId'] = [teamDriveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'pageToken': [pageToken],
+      if (driveId != null) 'driveId': [driveId],
+      if (includeCorpusRemovals != null)
+        'includeCorpusRemovals': ['${includeCorpusRemovals}'],
+      if (includeItemsFromAllDrives != null)
+        'includeItemsFromAllDrives': ['${includeItemsFromAllDrives}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (includeRemoved != null) 'includeRemoved': ['${includeRemoved}'],
+      if (includeTeamDriveItems != null)
+        'includeTeamDriveItems': ['${includeTeamDriveItems}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (restrictToMyDrive != null)
+        'restrictToMyDrive': ['${restrictToMyDrive}'],
+      if (spaces != null) 'spaces': [spaces],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (teamDriveId != null) 'teamDriveId': [teamDriveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'changes/watch';
 
@@ -507,10 +459,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'channels/stop';
 
@@ -557,10 +508,9 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/comments';
@@ -601,10 +551,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -652,13 +601,10 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -713,22 +659,13 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startModifiedTime != null) {
-      _queryParams['startModifiedTime'] = [startModifiedTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startModifiedTime != null) 'startModifiedTime': [startModifiedTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/comments';
@@ -776,10 +713,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -830,14 +766,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (requestId == null) {
       throw core.ArgumentError('Parameter requestId is required.');
     }
-    _queryParams['requestId'] = [requestId];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'drives';
 
@@ -873,10 +808,9 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'drives/' + commons.Escaper.ecapeVariable('$driveId');
 
@@ -916,13 +850,11 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'drives/' + commons.Escaper.ecapeVariable('$driveId');
 
@@ -957,10 +889,9 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'drives/' + commons.Escaper.ecapeVariable('$driveId') + '/hide';
@@ -1005,22 +936,14 @@
     core.bool useDomainAdminAccess,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (q != null) 'q': [q],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'drives';
 
@@ -1055,10 +978,9 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'drives/' + commons.Escaper.ecapeVariable('$driveId') + '/unhide';
@@ -1104,13 +1026,11 @@
     if (driveId == null) {
       throw core.ArgumentError('Parameter driveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'drives/' + commons.Escaper.ecapeVariable('$driveId');
 
@@ -1192,31 +1112,22 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (ignoreDefaultVisibility != null) {
-      _queryParams['ignoreDefaultVisibility'] = ['${ignoreDefaultVisibility}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (keepRevisionForever != null) {
-      _queryParams['keepRevisionForever'] = ['${keepRevisionForever}'];
-    }
-    if (ocrLanguage != null) {
-      _queryParams['ocrLanguage'] = [ocrLanguage];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (ignoreDefaultVisibility != null)
+        'ignoreDefaultVisibility': ['${ignoreDefaultVisibility}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (keepRevisionForever != null)
+        'keepRevisionForever': ['${keepRevisionForever}'],
+      if (ocrLanguage != null) 'ocrLanguage': [ocrLanguage],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId') + '/copy';
 
@@ -1295,36 +1206,24 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (ignoreDefaultVisibility != null) {
-      _queryParams['ignoreDefaultVisibility'] = ['${ignoreDefaultVisibility}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (keepRevisionForever != null) {
-      _queryParams['keepRevisionForever'] = ['${keepRevisionForever}'];
-    }
-    if (ocrLanguage != null) {
-      _queryParams['ocrLanguage'] = [ocrLanguage];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (useContentAsIndexableText != null) {
-      _queryParams['useContentAsIndexableText'] = [
-        '${useContentAsIndexableText}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (ignoreDefaultVisibility != null)
+        'ignoreDefaultVisibility': ['${ignoreDefaultVisibility}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (keepRevisionForever != null)
+        'keepRevisionForever': ['${keepRevisionForever}'],
+      if (ocrLanguage != null) 'ocrLanguage': [ocrLanguage],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (useContentAsIndexableText != null)
+        'useContentAsIndexableText': ['${useContentAsIndexableText}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -1384,19 +1283,15 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId');
 
@@ -1428,13 +1323,11 @@
     core.bool enforceSingleParent,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'files/trash';
 
@@ -1478,14 +1371,13 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (mimeType == null) {
       throw core.ArgumentError('Parameter mimeType is required.');
     }
-    _queryParams['mimeType'] = [mimeType];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'mimeType': [mimeType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/export';
@@ -1530,16 +1422,11 @@
     core.String space,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (count != null) {
-      _queryParams['count'] = ['${count}'];
-    }
-    if (space != null) {
-      _queryParams['space'] = [space];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (count != null) 'count': ['${count}'],
+      if (space != null) 'space': [space],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'files/generateIds';
 
@@ -1600,22 +1487,16 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acknowledgeAbuse != null) {
-      _queryParams['acknowledgeAbuse'] = ['${acknowledgeAbuse}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acknowledgeAbuse != null) 'acknowledgeAbuse': ['${acknowledgeAbuse}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId');
 
@@ -1721,54 +1602,28 @@
     core.String teamDriveId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (corpora != null) {
-      _queryParams['corpora'] = [corpora];
-    }
-    if (corpus != null) {
-      _queryParams['corpus'] = [corpus];
-    }
-    if (driveId != null) {
-      _queryParams['driveId'] = [driveId];
-    }
-    if (includeItemsFromAllDrives != null) {
-      _queryParams['includeItemsFromAllDrives'] = [
-        '${includeItemsFromAllDrives}'
-      ];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (includeTeamDriveItems != null) {
-      _queryParams['includeTeamDriveItems'] = ['${includeTeamDriveItems}'];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (spaces != null) {
-      _queryParams['spaces'] = [spaces];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (teamDriveId != null) {
-      _queryParams['teamDriveId'] = [teamDriveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (corpora != null) 'corpora': [corpora],
+      if (corpus != null) 'corpus': [corpus],
+      if (driveId != null) 'driveId': [driveId],
+      if (includeItemsFromAllDrives != null)
+        'includeItemsFromAllDrives': ['${includeItemsFromAllDrives}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (includeTeamDriveItems != null)
+        'includeTeamDriveItems': ['${includeTeamDriveItems}'],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (q != null) 'q': [q],
+      if (spaces != null) 'spaces': [spaces],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (teamDriveId != null) 'teamDriveId': [teamDriveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'files';
 
@@ -1853,39 +1708,24 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (addParents != null) {
-      _queryParams['addParents'] = [addParents];
-    }
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (keepRevisionForever != null) {
-      _queryParams['keepRevisionForever'] = ['${keepRevisionForever}'];
-    }
-    if (ocrLanguage != null) {
-      _queryParams['ocrLanguage'] = [ocrLanguage];
-    }
-    if (removeParents != null) {
-      _queryParams['removeParents'] = [removeParents];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (useContentAsIndexableText != null) {
-      _queryParams['useContentAsIndexableText'] = [
-        '${useContentAsIndexableText}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (addParents != null) 'addParents': [addParents],
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (keepRevisionForever != null)
+        'keepRevisionForever': ['${keepRevisionForever}'],
+      if (ocrLanguage != null) 'ocrLanguage': [ocrLanguage],
+      if (removeParents != null) 'removeParents': [removeParents],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (useContentAsIndexableText != null)
+        'useContentAsIndexableText': ['${useContentAsIndexableText}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -1962,22 +1802,16 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acknowledgeAbuse != null) {
-      _queryParams['acknowledgeAbuse'] = ['${acknowledgeAbuse}'];
-    }
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acknowledgeAbuse != null) 'acknowledgeAbuse': ['${acknowledgeAbuse}'],
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' + commons.Escaper.ecapeVariable('$fileId') + '/watch';
 
@@ -2068,34 +1902,24 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (emailMessage != null) {
-      _queryParams['emailMessage'] = [emailMessage];
-    }
-    if (enforceSingleParent != null) {
-      _queryParams['enforceSingleParent'] = ['${enforceSingleParent}'];
-    }
-    if (moveToNewOwnersRoot != null) {
-      _queryParams['moveToNewOwnersRoot'] = ['${moveToNewOwnersRoot}'];
-    }
-    if (sendNotificationEmail != null) {
-      _queryParams['sendNotificationEmail'] = ['${sendNotificationEmail}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (transferOwnership != null) {
-      _queryParams['transferOwnership'] = ['${transferOwnership}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (emailMessage != null) 'emailMessage': [emailMessage],
+      if (enforceSingleParent != null)
+        'enforceSingleParent': ['${enforceSingleParent}'],
+      if (moveToNewOwnersRoot != null)
+        'moveToNewOwnersRoot': ['${moveToNewOwnersRoot}'],
+      if (sendNotificationEmail != null)
+        'sendNotificationEmail': ['${sendNotificationEmail}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (transferOwnership != null)
+        'transferOwnership': ['${transferOwnership}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/permissions';
@@ -2150,19 +1974,15 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2219,19 +2039,15 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2299,28 +2115,19 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includePermissionsForView != null) {
-      _queryParams['includePermissionsForView'] = [includePermissionsForView];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includePermissionsForView != null)
+        'includePermissionsForView': [includePermissionsForView],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/permissions';
@@ -2389,25 +2196,18 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (removeExpiration != null) {
-      _queryParams['removeExpiration'] = ['${removeExpiration}'];
-    }
-    if (supportsAllDrives != null) {
-      _queryParams['supportsAllDrives'] = ['${supportsAllDrives}'];
-    }
-    if (supportsTeamDrives != null) {
-      _queryParams['supportsTeamDrives'] = ['${supportsTeamDrives}'];
-    }
-    if (transferOwnership != null) {
-      _queryParams['transferOwnership'] = ['${transferOwnership}'];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (removeExpiration != null) 'removeExpiration': ['${removeExpiration}'],
+      if (supportsAllDrives != null)
+        'supportsAllDrives': ['${supportsAllDrives}'],
+      if (supportsTeamDrives != null)
+        'supportsTeamDrives': ['${supportsTeamDrives}'],
+      if (transferOwnership != null)
+        'transferOwnership': ['${transferOwnership}'],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2464,10 +2264,9 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2517,10 +2316,9 @@
     if (replyId == null) {
       throw core.ArgumentError('Parameter replyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2576,13 +2374,10 @@
     if (replyId == null) {
       throw core.ArgumentError('Parameter replyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2641,19 +2436,12 @@
     if (commentId == null) {
       throw core.ArgumentError('Parameter commentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2709,10 +2497,9 @@
     if (replyId == null) {
       throw core.ArgumentError('Parameter replyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2767,10 +2554,9 @@
     if (revisionId == null) {
       throw core.ArgumentError('Parameter revisionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2828,13 +2614,10 @@
     if (revisionId == null) {
       throw core.ArgumentError('Parameter revisionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (acknowledgeAbuse != null) {
-      _queryParams['acknowledgeAbuse'] = ['${acknowledgeAbuse}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (acknowledgeAbuse != null) 'acknowledgeAbuse': ['${acknowledgeAbuse}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2888,16 +2671,11 @@
     if (fileId == null) {
       throw core.ArgumentError('Parameter fileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'files/' + commons.Escaper.ecapeVariable('$fileId') + '/revisions';
@@ -2945,10 +2723,9 @@
     if (revisionId == null) {
       throw core.ArgumentError('Parameter revisionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'files/' +
         commons.Escaper.ecapeVariable('$fileId') +
@@ -2999,14 +2776,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (requestId == null) {
       throw core.ArgumentError('Parameter requestId is required.');
     }
-    _queryParams['requestId'] = [requestId];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'teamdrives';
 
@@ -3040,10 +2816,9 @@
     if (teamDriveId == null) {
       throw core.ArgumentError('Parameter teamDriveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'teamdrives/' + commons.Escaper.ecapeVariable('$teamDriveId');
 
@@ -3083,13 +2858,11 @@
     if (teamDriveId == null) {
       throw core.ArgumentError('Parameter teamDriveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'teamdrives/' + commons.Escaper.ecapeVariable('$teamDriveId');
 
@@ -3133,22 +2906,14 @@
     core.bool useDomainAdminAccess,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (q != null) 'q': [q],
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'teamdrives';
 
@@ -3194,13 +2959,11 @@
     if (teamDriveId == null) {
       throw core.ArgumentError('Parameter teamDriveId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (useDomainAdminAccess != null) {
-      _queryParams['useDomainAdminAccess'] = ['${useDomainAdminAccess}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (useDomainAdminAccess != null)
+        'useDomainAdminAccess': ['${useDomainAdminAccess}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'teamdrives/' + commons.Escaper.ecapeVariable('$teamDriveId');
 
diff --git a/generated/googleapis/lib/driveactivity/v2.dart b/generated/googleapis/lib/driveactivity/v2.dart
index f219b9c..fd2ee03 100644
--- a/generated/googleapis/lib/driveactivity/v2.dart
+++ b/generated/googleapis/lib/driveactivity/v2.dart
@@ -85,10 +85,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/activity:query';
 
diff --git a/generated/googleapis/lib/eventarc/v1.dart b/generated/googleapis/lib/eventarc/v1.dart
index f086413..2c55766 100644
--- a/generated/googleapis/lib/eventarc/v1.dart
+++ b/generated/googleapis/lib/eventarc/v1.dart
@@ -97,10 +97,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -145,19 +144,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -217,10 +209,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -263,10 +254,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -306,10 +296,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -364,19 +353,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -434,16 +416,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (triggerId != null) {
-      _queryParams['triggerId'] = [triggerId];
-    }
-    if (validateOnly != null) {
-      _queryParams['validateOnly'] = ['${validateOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (triggerId != null) 'triggerId': [triggerId],
+      if (validateOnly != null) 'validateOnly': ['${validateOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/triggers';
@@ -495,19 +472,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (allowMissing != null) {
-      _queryParams['allowMissing'] = ['${allowMissing}'];
-    }
-    if (etag != null) {
-      _queryParams['etag'] = [etag];
-    }
-    if (validateOnly != null) {
-      _queryParams['validateOnly'] = ['${validateOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (allowMissing != null) 'allowMissing': ['${allowMissing}'],
+      if (etag != null) 'etag': [etag],
+      if (validateOnly != null) 'validateOnly': ['${validateOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -545,10 +515,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -599,15 +568,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -661,19 +626,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/triggers';
@@ -733,19 +691,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (allowMissing != null) {
-      _queryParams['allowMissing'] = ['${allowMissing}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if (validateOnly != null) {
-      _queryParams['validateOnly'] = ['${validateOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (allowMissing != null) 'allowMissing': ['${allowMissing}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if (validateOnly != null) 'validateOnly': ['${validateOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -794,10 +745,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -849,10 +799,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
diff --git a/generated/googleapis/lib/fcm/v1.dart b/generated/googleapis/lib/fcm/v1.dart
index 78fb50a..f93f965 100644
--- a/generated/googleapis/lib/fcm/v1.dart
+++ b/generated/googleapis/lib/fcm/v1.dart
@@ -104,10 +104,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/file/v1.dart b/generated/googleapis/lib/file/v1.dart
index 38314f1..f82e891 100644
--- a/generated/googleapis/lib/file/v1.dart
+++ b/generated/googleapis/lib/file/v1.dart
@@ -105,10 +105,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -157,24 +156,14 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeUnrevealedLocations != null) {
-      _queryParams['includeUnrevealedLocations'] = [
-        '${includeUnrevealedLocations}'
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeUnrevealedLocations != null)
+        'includeUnrevealedLocations': ['${includeUnrevealedLocations}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -233,13 +222,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (backupId != null) {
-      _queryParams['backupId'] = [backupId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (backupId != null) 'backupId': [backupId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/backups';
@@ -279,10 +265,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -320,10 +305,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -378,22 +362,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/backups';
@@ -442,13 +417,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -507,13 +479,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (instanceId != null) {
-      _queryParams['instanceId'] = [instanceId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (instanceId != null) 'instanceId': [instanceId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -553,10 +522,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -594,10 +562,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -652,22 +619,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -717,13 +675,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -771,10 +726,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':restore';
@@ -834,10 +788,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -880,10 +833,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -923,10 +875,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -980,19 +931,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/firebasedynamiclinks/v1.dart b/generated/googleapis/lib/firebasedynamiclinks/v1.dart
index 7940b0f..9c2e011 100644
--- a/generated/googleapis/lib/firebasedynamiclinks/v1.dart
+++ b/generated/googleapis/lib/firebasedynamiclinks/v1.dart
@@ -95,10 +95,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/managedShortLinks:create';
 
@@ -146,10 +145,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/shortLinks';
 
@@ -202,16 +200,11 @@
     if (dynamicLink == null) {
       throw core.ArgumentError('Parameter dynamicLink is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (durationDays != null) {
-      _queryParams['durationDays'] = [durationDays];
-    }
-    if (sdkVersion != null) {
-      _queryParams['sdkVersion'] = [sdkVersion];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (durationDays != null) 'durationDays': [durationDays],
+      if (sdkVersion != null) 'sdkVersion': [sdkVersion],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariable('$dynamicLink') + '/linkStats';
@@ -247,10 +240,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/installAttribution';
 
@@ -286,10 +278,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/reopenAttribution';
 
diff --git a/generated/googleapis/lib/firebasehosting/v1.dart b/generated/googleapis/lib/firebasehosting/v1.dart
index 962117f..a927dfa 100644
--- a/generated/googleapis/lib/firebasehosting/v1.dart
+++ b/generated/googleapis/lib/firebasehosting/v1.dart
@@ -99,10 +99,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -144,10 +143,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -201,19 +199,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/firebaseml/v1.dart b/generated/googleapis/lib/firebaseml/v1.dart
index 2d62209..de61b27 100644
--- a/generated/googleapis/lib/firebaseml/v1.dart
+++ b/generated/googleapis/lib/firebaseml/v1.dart
@@ -97,10 +97,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -142,10 +141,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -199,19 +197,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/firebaserules/v1.dart b/generated/googleapis/lib/firebaserules/v1.dart
index fc7d183..9e0e27a 100644
--- a/generated/googleapis/lib/firebaserules/v1.dart
+++ b/generated/googleapis/lib/firebaserules/v1.dart
@@ -119,10 +119,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':test';
@@ -189,10 +188,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/releases';
@@ -231,10 +229,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -271,10 +268,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -322,13 +318,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (executableVersion != null) {
-      _queryParams['executableVersion'] = [executableVersion];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (executableVersion != null) 'executableVersion': [executableVersion],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -398,19 +391,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/releases';
@@ -458,10 +444,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -515,10 +500,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/rulesets';
@@ -559,10 +543,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -599,10 +582,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -659,19 +641,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/rulesets';
diff --git a/generated/googleapis/lib/firestore/v1.dart b/generated/googleapis/lib/firestore/v1.dart
index 875b38a..d7a09b4 100644
--- a/generated/googleapis/lib/firestore/v1.dart
+++ b/generated/googleapis/lib/firestore/v1.dart
@@ -127,10 +127,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -182,10 +181,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -246,10 +244,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -307,19 +304,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/fields';
@@ -395,13 +385,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -457,10 +444,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/indexes';
@@ -501,10 +487,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -542,10 +527,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -595,19 +579,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/indexes';
@@ -661,10 +638,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -716,10 +692,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -765,10 +740,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -814,10 +788,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -880,16 +853,11 @@
     if (collectionId == null) {
       throw core.ArgumentError('Parameter collectionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (documentId != null) {
-      _queryParams['documentId'] = [documentId];
-    }
-    if (mask_fieldPaths != null) {
-      _queryParams['mask.fieldPaths'] = mask_fieldPaths;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (documentId != null) 'documentId': [documentId],
+      if (mask_fieldPaths != null) 'mask.fieldPaths': mask_fieldPaths,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -940,16 +908,13 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (currentDocument_exists != null) {
-      _queryParams['currentDocument.exists'] = ['${currentDocument_exists}'];
-    }
-    if (currentDocument_updateTime != null) {
-      _queryParams['currentDocument.updateTime'] = [currentDocument_updateTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (currentDocument_exists != null)
+        'currentDocument.exists': ['${currentDocument_exists}'],
+      if (currentDocument_updateTime != null)
+        'currentDocument.updateTime': [currentDocument_updateTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -999,19 +964,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (mask_fieldPaths != null) {
-      _queryParams['mask.fieldPaths'] = mask_fieldPaths;
-    }
-    if (readTime != null) {
-      _queryParams['readTime'] = [readTime];
-    }
-    if (transaction != null) {
-      _queryParams['transaction'] = [transaction];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (mask_fieldPaths != null) 'mask.fieldPaths': mask_fieldPaths,
+      if (readTime != null) 'readTime': [readTime],
+      if (transaction != null) 'transaction': [transaction],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1088,31 +1046,16 @@
     if (collectionId == null) {
       throw core.ArgumentError('Parameter collectionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (mask_fieldPaths != null) {
-      _queryParams['mask.fieldPaths'] = mask_fieldPaths;
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readTime != null) {
-      _queryParams['readTime'] = [readTime];
-    }
-    if (showMissing != null) {
-      _queryParams['showMissing'] = ['${showMissing}'];
-    }
-    if (transaction != null) {
-      _queryParams['transaction'] = [transaction];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (mask_fieldPaths != null) 'mask.fieldPaths': mask_fieldPaths,
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readTime != null) 'readTime': [readTime],
+      if (showMissing != null) 'showMissing': ['${showMissing}'],
+      if (transaction != null) 'transaction': [transaction],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1161,10 +1104,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1210,10 +1152,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -1266,10 +1207,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1332,22 +1272,16 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (currentDocument_exists != null) {
-      _queryParams['currentDocument.exists'] = ['${currentDocument_exists}'];
-    }
-    if (currentDocument_updateTime != null) {
-      _queryParams['currentDocument.updateTime'] = [currentDocument_updateTime];
-    }
-    if (mask_fieldPaths != null) {
-      _queryParams['mask.fieldPaths'] = mask_fieldPaths;
-    }
-    if (updateMask_fieldPaths != null) {
-      _queryParams['updateMask.fieldPaths'] = updateMask_fieldPaths;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (currentDocument_exists != null)
+        'currentDocument.exists': ['${currentDocument_exists}'],
+      if (currentDocument_updateTime != null)
+        'currentDocument.updateTime': [currentDocument_updateTime],
+      if (mask_fieldPaths != null) 'mask.fieldPaths': mask_fieldPaths,
+      if (updateMask_fieldPaths != null)
+        'updateMask.fieldPaths': updateMask_fieldPaths,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1390,10 +1324,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -1442,10 +1375,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + ':runQuery';
@@ -1491,10 +1423,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -1556,10 +1487,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1602,10 +1532,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1645,10 +1574,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1703,19 +1631,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -1759,10 +1680,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1807,19 +1727,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
diff --git a/generated/googleapis/lib/fitness/v1.dart b/generated/googleapis/lib/fitness/v1.dart
index e1a419d..c249337 100644
--- a/generated/googleapis/lib/fitness/v1.dart
+++ b/generated/googleapis/lib/fitness/v1.dart
@@ -234,10 +234,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') + '/dataSources';
 
@@ -283,10 +282,9 @@
     if (dataSourceId == null) {
       throw core.ArgumentError('Parameter dataSourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') +
         '/dataSources/' +
@@ -331,10 +329,9 @@
     if (dataSourceId == null) {
       throw core.ArgumentError('Parameter dataSourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') +
         '/dataSources/' +
@@ -381,13 +378,10 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dataTypeName != null) {
-      _queryParams['dataTypeName'] = dataTypeName;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dataTypeName != null) 'dataTypeName': dataTypeName,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') + '/dataSources';
 
@@ -439,10 +433,9 @@
     if (dataSourceId == null) {
       throw core.ArgumentError('Parameter dataSourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') +
         '/dataSources/' +
@@ -505,16 +498,11 @@
     if (dataSourceId == null) {
       throw core.ArgumentError('Parameter dataSourceId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (limit != null) 'limit': ['${limit}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') +
         '/dataSources/' +
@@ -589,16 +577,12 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (currentTimeMillis != null) {
-      _queryParams['currentTimeMillis'] = [currentTimeMillis];
-    }
-    if (modifiedTimeMillis != null) {
-      _queryParams['modifiedTimeMillis'] = [modifiedTimeMillis];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (currentTimeMillis != null) 'currentTimeMillis': [currentTimeMillis],
+      if (modifiedTimeMillis != null)
+        'modifiedTimeMillis': [modifiedTimeMillis],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') +
         '/dataSources/' +
@@ -674,16 +658,11 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (limit != null) 'limit': ['${limit}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') +
         '/dataSources/' +
@@ -752,13 +731,10 @@
     if (datasetId == null) {
       throw core.ArgumentError('Parameter datasetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (currentTimeMillis != null) {
-      _queryParams['currentTimeMillis'] = [currentTimeMillis];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (currentTimeMillis != null) 'currentTimeMillis': [currentTimeMillis],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') +
         '/dataSources/' +
@@ -814,10 +790,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         commons.Escaper.ecapeVariable('$userId') + '/dataset:aggregate';
@@ -870,13 +845,10 @@
     if (sessionId == null) {
       throw core.ArgumentError('Parameter sessionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (currentTimeMillis != null) {
-      _queryParams['currentTimeMillis'] = [currentTimeMillis];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (currentTimeMillis != null) 'currentTimeMillis': [currentTimeMillis],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') +
         '/sessions/' +
@@ -942,26 +914,15 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (activityType != null) {
-      _queryParams['activityType'] =
-          activityType.map((item) => '${item}').toList();
-    }
-    if (endTime != null) {
-      _queryParams['endTime'] = [endTime];
-    }
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (activityType != null)
+        'activityType': activityType.map((item) => '${item}').toList(),
+      if (endTime != null) 'endTime': [endTime],
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startTime != null) 'startTime': [startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') + '/sessions';
 
@@ -1013,13 +974,10 @@
     if (sessionId == null) {
       throw core.ArgumentError('Parameter sessionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (currentTimeMillis != null) {
-      _queryParams['currentTimeMillis'] = [currentTimeMillis];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (currentTimeMillis != null) 'currentTimeMillis': [currentTimeMillis],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$userId') +
         '/sessions/' +
diff --git a/generated/googleapis/lib/games/v1.dart b/generated/googleapis/lib/games/v1.dart
index ac75253..2abad75 100644
--- a/generated/googleapis/lib/games/v1.dart
+++ b/generated/googleapis/lib/games/v1.dart
@@ -119,19 +119,12 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/achievements';
 
@@ -182,17 +175,14 @@
     if (achievementId == null) {
       throw core.ArgumentError('Parameter achievementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (stepsToIncrement == null) {
       throw core.ArgumentError('Parameter stepsToIncrement is required.');
     }
-    _queryParams['stepsToIncrement'] = ['${stepsToIncrement}'];
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'stepsToIncrement': ['${stepsToIncrement}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/achievements/' +
         commons.Escaper.ecapeVariable('$achievementId') +
@@ -254,22 +244,13 @@
     if (playerId == null) {
       throw core.ArgumentError('Parameter playerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (state != null) {
-      _queryParams['state'] = [state];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (state != null) 'state': [state],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/players/' +
         commons.Escaper.ecapeVariable('$playerId') +
@@ -308,10 +289,9 @@
     if (achievementId == null) {
       throw core.ArgumentError('Parameter achievementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/achievements/' +
         commons.Escaper.ecapeVariable('$achievementId') +
@@ -357,14 +337,13 @@
     if (achievementId == null) {
       throw core.ArgumentError('Parameter achievementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (steps == null) {
       throw core.ArgumentError('Parameter steps is required.');
     }
-    _queryParams['steps'] = ['${steps}'];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'steps': ['${steps}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/achievements/' +
         commons.Escaper.ecapeVariable('$achievementId') +
@@ -402,10 +381,9 @@
     if (achievementId == null) {
       throw core.ArgumentError('Parameter achievementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/achievements/' +
         commons.Escaper.ecapeVariable('$achievementId') +
@@ -442,10 +420,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/achievements/updateMultiple';
 
@@ -505,16 +482,11 @@
     if (applicationId == null) {
       throw core.ArgumentError('Parameter applicationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (platformType != null) {
-      _queryParams['platformType'] = [platformType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if (platformType != null) 'platformType': [platformType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/applications/' +
         commons.Escaper.ecapeVariable('$applicationId');
@@ -556,16 +528,11 @@
     core.String endPointType,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (applicationId != null) {
-      _queryParams['applicationId'] = [applicationId];
-    }
-    if (endPointType != null) {
-      _queryParams['endPointType'] = [endPointType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (applicationId != null) 'applicationId': [applicationId],
+      if (endPointType != null) 'endPointType': [endPointType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/applications/getEndPoint';
 
@@ -593,10 +560,9 @@
   async.Future<void> played({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/applications/played';
 
@@ -634,10 +600,9 @@
     if (applicationId == null) {
       throw core.ArgumentError('Parameter applicationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/applications/' +
         commons.Escaper.ecapeVariable('$applicationId') +
@@ -688,19 +653,12 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/events';
 
@@ -742,19 +700,12 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/eventDefinitions';
 
@@ -794,13 +745,10 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/events';
 
@@ -847,13 +795,10 @@
     if (leaderboardId == null) {
       throw core.ArgumentError('Parameter leaderboardId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/leaderboards/' +
         commons.Escaper.ecapeVariable('$leaderboardId');
@@ -896,19 +841,12 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/leaderboards';
 
@@ -944,10 +882,9 @@
   async.Future<MetagameConfig> getMetagameConfig({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/metagameConfig';
 
@@ -1007,19 +944,12 @@
     if (collection == null) {
       throw core.ArgumentError('Parameter collection is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/players/' +
         commons.Escaper.ecapeVariable('$playerId') +
@@ -1072,13 +1002,10 @@
     if (playerId == null) {
       throw core.ArgumentError('Parameter playerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'games/v1/players/' + commons.Escaper.ecapeVariable('$playerId');
@@ -1133,19 +1060,12 @@
     if (collection == null) {
       throw core.ArgumentError('Parameter collection is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/players/me/players/' +
         commons.Escaper.ecapeVariable('$collection');
@@ -1189,14 +1109,13 @@
     core.String clientRevision, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (clientRevision == null) {
       throw core.ArgumentError('Parameter clientRevision is required.');
     }
-    _queryParams['clientRevision'] = [clientRevision];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'clientRevision': [clientRevision],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/revisions/check';
 
@@ -1289,22 +1208,13 @@
     if (timeSpan == null) {
       throw core.ArgumentError('Parameter timeSpan is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeRankType != null) {
-      _queryParams['includeRankType'] = [includeRankType];
-    }
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeRankType != null) 'includeRankType': [includeRankType],
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/players/' +
         commons.Escaper.ecapeVariable('$playerId') +
@@ -1376,23 +1286,16 @@
     if (collection == null) {
       throw core.ArgumentError('Parameter collection is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (timeSpan == null) {
       throw core.ArgumentError('Parameter timeSpan is required.');
     }
-    _queryParams['timeSpan'] = [timeSpan];
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'timeSpan': [timeSpan],
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/leaderboards/' +
         commons.Escaper.ecapeVariable('$leaderboardId') +
@@ -1472,29 +1375,19 @@
     if (collection == null) {
       throw core.ArgumentError('Parameter collection is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (timeSpan == null) {
       throw core.ArgumentError('Parameter timeSpan is required.');
     }
-    _queryParams['timeSpan'] = [timeSpan];
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (resultsAbove != null) {
-      _queryParams['resultsAbove'] = ['${resultsAbove}'];
-    }
-    if (returnTopIfAbsent != null) {
-      _queryParams['returnTopIfAbsent'] = ['${returnTopIfAbsent}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'timeSpan': [timeSpan],
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (resultsAbove != null) 'resultsAbove': ['${resultsAbove}'],
+      if (returnTopIfAbsent != null)
+        'returnTopIfAbsent': ['${returnTopIfAbsent}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/leaderboards/' +
         commons.Escaper.ecapeVariable('$leaderboardId') +
@@ -1551,20 +1444,15 @@
     if (leaderboardId == null) {
       throw core.ArgumentError('Parameter leaderboardId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (score == null) {
       throw core.ArgumentError('Parameter score is required.');
     }
-    _queryParams['score'] = [score];
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (scoreTag != null) {
-      _queryParams['scoreTag'] = [scoreTag];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'score': [score],
+      if (language != null) 'language': [language],
+      if (scoreTag != null) 'scoreTag': [scoreTag],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/leaderboards/' +
         commons.Escaper.ecapeVariable('$leaderboardId') +
@@ -1605,13 +1493,10 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/leaderboards/scores';
 
@@ -1658,13 +1543,10 @@
     if (snapshotId == null) {
       throw core.ArgumentError('Parameter snapshotId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'games/v1/snapshots/' + commons.Escaper.ecapeVariable('$snapshotId');
@@ -1714,19 +1596,12 @@
     if (playerId == null) {
       throw core.ArgumentError('Parameter playerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (language != null) {
-      _queryParams['language'] = [language];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (language != null) 'language': [language],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/players/' +
         commons.Escaper.ecapeVariable('$playerId') +
@@ -1777,10 +1652,9 @@
     if (snapshotName == null) {
       throw core.ArgumentError('Parameter snapshotName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1/snapshotsExtended/' +
         commons.Escaper.ecapeVariable('$snapshotName') +
@@ -1820,10 +1694,9 @@
   async.Future<StatsResponse> get({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1/stats';
 
diff --git a/generated/googleapis/lib/gamesconfiguration/v1configuration.dart b/generated/googleapis/lib/gamesconfiguration/v1configuration.dart
index 983b2ad..47356ad 100644
--- a/generated/googleapis/lib/gamesconfiguration/v1configuration.dart
+++ b/generated/googleapis/lib/gamesconfiguration/v1configuration.dart
@@ -98,10 +98,9 @@
     if (achievementId == null) {
       throw core.ArgumentError('Parameter achievementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/achievements/' +
         commons.Escaper.ecapeVariable('$achievementId');
@@ -137,10 +136,9 @@
     if (achievementId == null) {
       throw core.ArgumentError('Parameter achievementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/achievements/' +
         commons.Escaper.ecapeVariable('$achievementId');
@@ -183,10 +181,9 @@
     if (applicationId == null) {
       throw core.ArgumentError('Parameter applicationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/applications/' +
         commons.Escaper.ecapeVariable('$applicationId') +
@@ -234,16 +231,11 @@
     if (applicationId == null) {
       throw core.ArgumentError('Parameter applicationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/applications/' +
         commons.Escaper.ecapeVariable('$applicationId') +
@@ -286,10 +278,9 @@
     if (achievementId == null) {
       throw core.ArgumentError('Parameter achievementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/achievements/' +
         commons.Escaper.ecapeVariable('$achievementId');
@@ -347,10 +338,9 @@
     if (imageType == null) {
       throw core.ArgumentError('Parameter imageType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -404,10 +394,9 @@
     if (leaderboardId == null) {
       throw core.ArgumentError('Parameter leaderboardId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/leaderboards/' +
         commons.Escaper.ecapeVariable('$leaderboardId');
@@ -443,10 +432,9 @@
     if (leaderboardId == null) {
       throw core.ArgumentError('Parameter leaderboardId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/leaderboards/' +
         commons.Escaper.ecapeVariable('$leaderboardId');
@@ -489,10 +477,9 @@
     if (applicationId == null) {
       throw core.ArgumentError('Parameter applicationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/applications/' +
         commons.Escaper.ecapeVariable('$applicationId') +
@@ -540,16 +527,11 @@
     if (applicationId == null) {
       throw core.ArgumentError('Parameter applicationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/applications/' +
         commons.Escaper.ecapeVariable('$applicationId') +
@@ -592,10 +574,9 @@
     if (leaderboardId == null) {
       throw core.ArgumentError('Parameter leaderboardId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1configuration/leaderboards/' +
         commons.Escaper.ecapeVariable('$leaderboardId');
diff --git a/generated/googleapis/lib/gameservices/v1.dart b/generated/googleapis/lib/gameservices/v1.dart
index 0bd43fe..fd2e609 100644
--- a/generated/googleapis/lib/gameservices/v1.dart
+++ b/generated/googleapis/lib/gameservices/v1.dart
@@ -105,10 +105,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -157,24 +156,14 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (includeUnrevealedLocations != null) {
-      _queryParams['includeUnrevealedLocations'] = [
-        '${includeUnrevealedLocations}'
-      ];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (includeUnrevealedLocations != null)
+        'includeUnrevealedLocations': ['${includeUnrevealedLocations}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -232,13 +221,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (deploymentId != null) {
-      _queryParams['deploymentId'] = [deploymentId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (deploymentId != null) 'deploymentId': [deploymentId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -280,10 +266,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -331,10 +316,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -377,10 +361,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -432,15 +415,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -481,10 +460,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/rollout';
@@ -541,22 +519,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -610,13 +579,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -674,16 +640,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (previewTime != null) {
-      _queryParams['previewTime'] = [previewTime];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (previewTime != null) 'previewTime': [previewTime],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -734,10 +695,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -789,10 +749,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -853,13 +812,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/rollout';
@@ -920,13 +876,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (configId != null) {
-      _queryParams['configId'] = [configId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (configId != null) 'configId': [configId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/configs';
@@ -970,10 +923,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1012,10 +964,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1074,22 +1025,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/configs';
@@ -1149,10 +1091,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1195,10 +1136,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1238,10 +1178,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1295,19 +1234,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -1364,13 +1296,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (realmId != null) {
-      _queryParams['realmId'] = [realmId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (realmId != null) 'realmId': [realmId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/realms';
@@ -1410,10 +1339,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1451,10 +1379,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1508,22 +1435,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/realms';
@@ -1574,13 +1492,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1633,16 +1548,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (previewTime != null) {
-      _queryParams['previewTime'] = [previewTime];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (previewTime != null) 'previewTime': [previewTime],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1700,13 +1610,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (gameServerClusterId != null) {
-      _queryParams['gameServerClusterId'] = [gameServerClusterId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (gameServerClusterId != null)
+        'gameServerClusterId': [gameServerClusterId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1748,10 +1656,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1790,10 +1697,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1850,22 +1756,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1919,13 +1816,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1977,16 +1871,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (gameServerClusterId != null) {
-      _queryParams['gameServerClusterId'] = [gameServerClusterId];
-    }
-    if (previewTime != null) {
-      _queryParams['previewTime'] = [previewTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (gameServerClusterId != null)
+        'gameServerClusterId': [gameServerClusterId],
+      if (previewTime != null) 'previewTime': [previewTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2032,13 +1922,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (previewTime != null) {
-      _queryParams['previewTime'] = [previewTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (previewTime != null) 'previewTime': [previewTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2095,16 +1982,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (previewTime != null) {
-      _queryParams['previewTime'] = [previewTime];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (previewTime != null) 'previewTime': [previewTime],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
diff --git a/generated/googleapis/lib/gamesmanagement/v1management.dart b/generated/googleapis/lib/gamesmanagement/v1management.dart
index b9b7c77..b25a8c8 100644
--- a/generated/googleapis/lib/gamesmanagement/v1management.dart
+++ b/generated/googleapis/lib/gamesmanagement/v1management.dart
@@ -95,10 +95,9 @@
     if (achievementId == null) {
       throw core.ArgumentError('Parameter achievementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1management/achievements/' +
         commons.Escaper.ecapeVariable('$achievementId') +
@@ -134,10 +133,9 @@
   async.Future<AchievementResetAllResponse> resetAll({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1management/achievements/reset';
 
@@ -167,10 +165,9 @@
   async.Future<void> resetAllForAllPlayers({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1management/achievements/resetAllForAllPlayers';
 
@@ -206,10 +203,9 @@
     if (achievementId == null) {
       throw core.ArgumentError('Parameter achievementId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1management/achievements/' +
         commons.Escaper.ecapeVariable('$achievementId') +
@@ -246,10 +242,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1management/achievements/resetMultipleForAllPlayers';
 
@@ -302,16 +297,11 @@
     if (applicationId == null) {
       throw core.ArgumentError('Parameter applicationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1management/applications/' +
         commons.Escaper.ecapeVariable('$applicationId') +
@@ -357,10 +347,9 @@
     if (eventId == null) {
       throw core.ArgumentError('Parameter eventId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1management/events/' +
         commons.Escaper.ecapeVariable('$eventId') +
@@ -393,10 +382,9 @@
   async.Future<void> resetAll({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1management/events/reset';
 
@@ -425,10 +413,9 @@
   async.Future<void> resetAllForAllPlayers({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1management/events/resetAllForAllPlayers';
 
@@ -464,10 +451,9 @@
     if (eventId == null) {
       throw core.ArgumentError('Parameter eventId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1management/events/' +
         commons.Escaper.ecapeVariable('$eventId') +
@@ -504,10 +490,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1management/events/resetMultipleForAllPlayers';
 
@@ -557,10 +542,9 @@
     if (playerId == null) {
       throw core.ArgumentError('Parameter playerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1management/applications/' +
         commons.Escaper.ecapeVariable('$applicationId') +
@@ -606,10 +590,9 @@
     if (playerId == null) {
       throw core.ArgumentError('Parameter playerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1management/applications/' +
         commons.Escaper.ecapeVariable('$applicationId') +
@@ -657,10 +640,9 @@
     if (leaderboardId == null) {
       throw core.ArgumentError('Parameter leaderboardId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1management/leaderboards/' +
         commons.Escaper.ecapeVariable('$leaderboardId') +
@@ -696,10 +678,9 @@
   async.Future<PlayerScoreResetAllResponse> resetAll({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1management/scores/reset';
 
@@ -729,10 +710,9 @@
   async.Future<void> resetAllForAllPlayers({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1management/scores/resetAllForAllPlayers';
 
@@ -768,10 +748,9 @@
     if (leaderboardId == null) {
       throw core.ArgumentError('Parameter leaderboardId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'games/v1management/leaderboards/' +
         commons.Escaper.ecapeVariable('$leaderboardId') +
@@ -808,10 +787,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'games/v1management/scores/resetMultipleForAllPlayers';
 
diff --git a/generated/googleapis/lib/genomics/v1.dart b/generated/googleapis/lib/genomics/v1.dart
index 377d307..416328f 100644
--- a/generated/googleapis/lib/genomics/v1.dart
+++ b/generated/googleapis/lib/genomics/v1.dart
@@ -98,10 +98,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -144,10 +143,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -215,19 +213,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/gmail/v1.dart b/generated/googleapis/lib/gmail/v1.dart
index 0bb6b8f..2e1f26c 100644
--- a/generated/googleapis/lib/gmail/v1.dart
+++ b/generated/googleapis/lib/gmail/v1.dart
@@ -163,10 +163,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -202,10 +201,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'gmail/v1/users/' + commons.Escaper.ecapeVariable('$userId') + '/stop';
@@ -247,10 +245,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'gmail/v1/users/' + commons.Escaper.ecapeVariable('$userId') + '/watch';
@@ -308,10 +305,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -369,10 +365,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -431,13 +426,10 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (format != null) {
-      _queryParams['format'] = [format];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (format != null) 'format': [format],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -492,22 +484,13 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeSpamTrash != null) {
-      _queryParams['includeSpamTrash'] = ['${includeSpamTrash}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeSpamTrash != null) 'includeSpamTrash': ['${includeSpamTrash}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (q != null) 'q': [q],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -560,10 +543,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -634,10 +616,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -727,25 +708,14 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (historyTypes != null) {
-      _queryParams['historyTypes'] = historyTypes;
-    }
-    if (labelId != null) {
-      _queryParams['labelId'] = [labelId];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startHistoryId != null) {
-      _queryParams['startHistoryId'] = [startHistoryId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (historyTypes != null) 'historyTypes': historyTypes,
+      if (labelId != null) 'labelId': [labelId],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startHistoryId != null) 'startHistoryId': [startHistoryId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -795,10 +765,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -842,10 +811,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -890,10 +858,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -932,10 +899,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -985,10 +951,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1039,10 +1004,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1097,10 +1061,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1142,10 +1105,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1190,10 +1152,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1258,16 +1219,11 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (format != null) {
-      _queryParams['format'] = [format];
-    }
-    if (metadataHeaders != null) {
-      _queryParams['metadataHeaders'] = metadataHeaders;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (format != null) 'format': [format],
+      if (metadataHeaders != null) 'metadataHeaders': metadataHeaders,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1344,22 +1300,15 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (deleted != null) {
-      _queryParams['deleted'] = ['${deleted}'];
-    }
-    if (internalDateSource != null) {
-      _queryParams['internalDateSource'] = [internalDateSource];
-    }
-    if (neverMarkSpam != null) {
-      _queryParams['neverMarkSpam'] = ['${neverMarkSpam}'];
-    }
-    if (processForCalendar != null) {
-      _queryParams['processForCalendar'] = ['${processForCalendar}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (deleted != null) 'deleted': ['${deleted}'],
+      if (internalDateSource != null)
+        'internalDateSource': [internalDateSource],
+      if (neverMarkSpam != null) 'neverMarkSpam': ['${neverMarkSpam}'],
+      if (processForCalendar != null)
+        'processForCalendar': ['${processForCalendar}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -1440,16 +1389,12 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (deleted != null) {
-      _queryParams['deleted'] = ['${deleted}'];
-    }
-    if (internalDateSource != null) {
-      _queryParams['internalDateSource'] = [internalDateSource];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (deleted != null) 'deleted': ['${deleted}'],
+      if (internalDateSource != null)
+        'internalDateSource': [internalDateSource],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -1522,25 +1467,14 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeSpamTrash != null) {
-      _queryParams['includeSpamTrash'] = ['${includeSpamTrash}'];
-    }
-    if (labelIds != null) {
-      _queryParams['labelIds'] = labelIds;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeSpamTrash != null) 'includeSpamTrash': ['${includeSpamTrash}'],
+      if (labelIds != null) 'labelIds': labelIds,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (q != null) 'q': [q],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1590,10 +1524,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1648,10 +1581,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -1709,10 +1641,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1758,10 +1689,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1820,10 +1750,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1880,10 +1809,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1922,10 +1850,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -1964,10 +1891,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2006,10 +1932,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2048,10 +1973,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2099,10 +2023,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2147,10 +2070,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2201,10 +2123,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2249,10 +2170,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2297,10 +2217,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2364,10 +2283,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2416,10 +2334,9 @@
     if (delegateEmail == null) {
       throw core.ArgumentError('Parameter delegateEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2469,10 +2386,9 @@
     if (delegateEmail == null) {
       throw core.ArgumentError('Parameter delegateEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2514,10 +2430,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2570,10 +2485,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2616,10 +2530,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2664,10 +2577,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2706,10 +2618,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2766,10 +2677,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2817,10 +2727,9 @@
     if (forwardingEmail == null) {
       throw core.ArgumentError('Parameter forwardingEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2865,10 +2774,9 @@
     if (forwardingEmail == null) {
       throw core.ArgumentError('Parameter forwardingEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2908,10 +2816,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -2974,10 +2881,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3024,10 +2930,9 @@
     if (sendAsEmail == null) {
       throw core.ArgumentError('Parameter sendAsEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3075,10 +2980,9 @@
     if (sendAsEmail == null) {
       throw core.ArgumentError('Parameter sendAsEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3120,10 +3024,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3173,10 +3076,9 @@
     if (sendAsEmail == null) {
       throw core.ArgumentError('Parameter sendAsEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3232,10 +3134,9 @@
     if (sendAsEmail == null) {
       throw core.ArgumentError('Parameter sendAsEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3282,10 +3183,9 @@
     if (sendAsEmail == null) {
       throw core.ArgumentError('Parameter sendAsEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3343,10 +3243,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3400,10 +3299,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3458,10 +3356,9 @@
     if (sendAsEmail == null) {
       throw core.ArgumentError('Parameter sendAsEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3509,10 +3406,9 @@
     if (sendAsEmail == null) {
       throw core.ArgumentError('Parameter sendAsEmail is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3564,10 +3460,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3621,10 +3516,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3683,16 +3577,11 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (format != null) {
-      _queryParams['format'] = [format];
-    }
-    if (metadataHeaders != null) {
-      _queryParams['metadataHeaders'] = metadataHeaders;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (format != null) 'format': [format],
+      if (metadataHeaders != null) 'metadataHeaders': metadataHeaders,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3752,25 +3641,14 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeSpamTrash != null) {
-      _queryParams['includeSpamTrash'] = ['${includeSpamTrash}'];
-    }
-    if (labelIds != null) {
-      _queryParams['labelIds'] = labelIds;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeSpamTrash != null) 'includeSpamTrash': ['${includeSpamTrash}'],
+      if (labelIds != null) 'labelIds': labelIds,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (q != null) 'q': [q],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3822,10 +3700,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3872,10 +3749,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
@@ -3921,10 +3797,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'gmail/v1/users/' +
         commons.Escaper.ecapeVariable('$userId') +
diff --git a/generated/googleapis/lib/gmailpostmastertools/v1.dart b/generated/googleapis/lib/gmailpostmastertools/v1.dart
index a1f62f5..c52aa0d 100644
--- a/generated/googleapis/lib/gmailpostmastertools/v1.dart
+++ b/generated/googleapis/lib/gmailpostmastertools/v1.dart
@@ -95,10 +95,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -140,16 +139,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/domains';
 
@@ -197,10 +191,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -278,34 +271,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endDate_day != null) {
-      _queryParams['endDate.day'] = ['${endDate_day}'];
-    }
-    if (endDate_month != null) {
-      _queryParams['endDate.month'] = ['${endDate_month}'];
-    }
-    if (endDate_year != null) {
-      _queryParams['endDate.year'] = ['${endDate_year}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startDate_day != null) {
-      _queryParams['startDate.day'] = ['${startDate_day}'];
-    }
-    if (startDate_month != null) {
-      _queryParams['startDate.month'] = ['${startDate_month}'];
-    }
-    if (startDate_year != null) {
-      _queryParams['startDate.year'] = ['${startDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endDate_day != null) 'endDate.day': ['${endDate_day}'],
+      if (endDate_month != null) 'endDate.month': ['${endDate_month}'],
+      if (endDate_year != null) 'endDate.year': ['${endDate_year}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startDate_day != null) 'startDate.day': ['${startDate_day}'],
+      if (startDate_month != null) 'startDate.month': ['${startDate_month}'],
+      if (startDate_year != null) 'startDate.year': ['${startDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/groupsmigration/v1.dart b/generated/googleapis/lib/groupsmigration/v1.dart
index 80df44b..c6d2a15 100644
--- a/generated/googleapis/lib/groupsmigration/v1.dart
+++ b/generated/googleapis/lib/groupsmigration/v1.dart
@@ -95,10 +95,9 @@
     if (groupId == null) {
       throw core.ArgumentError('Parameter groupId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
diff --git a/generated/googleapis/lib/groupssettings/v1.dart b/generated/googleapis/lib/groupssettings/v1.dart
index 8d10c83..2e92b56 100644
--- a/generated/googleapis/lib/groupssettings/v1.dart
+++ b/generated/googleapis/lib/groupssettings/v1.dart
@@ -83,10 +83,9 @@
     if (groupUniqueId == null) {
       throw core.ArgumentError('Parameter groupUniqueId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$groupUniqueId');
 
@@ -128,10 +127,9 @@
     if (groupUniqueId == null) {
       throw core.ArgumentError('Parameter groupUniqueId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$groupUniqueId');
 
@@ -172,10 +170,9 @@
     if (groupUniqueId == null) {
       throw core.ArgumentError('Parameter groupUniqueId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = commons.Escaper.ecapeVariable('$groupUniqueId');
 
diff --git a/generated/googleapis/lib/healthcare/v1.dart b/generated/googleapis/lib/healthcare/v1.dart
index c9f3ae1..091f3a5 100644
--- a/generated/googleapis/lib/healthcare/v1.dart
+++ b/generated/googleapis/lib/healthcare/v1.dart
@@ -108,10 +108,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -156,19 +155,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -238,13 +230,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (datasetId != null) {
-      _queryParams['datasetId'] = [datasetId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (datasetId != null) 'datasetId': [datasetId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/datasets';
@@ -298,10 +287,9 @@
     if (sourceDataset == null) {
       throw core.ArgumentError('Parameter sourceDataset is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$sourceDataset') +
@@ -346,10 +334,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -387,10 +374,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -441,15 +427,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -496,16 +478,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/datasets';
@@ -555,13 +532,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -609,10 +583,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -664,10 +637,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -729,15 +701,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -786,10 +754,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -841,10 +808,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -904,13 +870,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dicomStoreId != null) {
-      _queryParams['dicomStoreId'] = [dicomStoreId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dicomStoreId != null) 'dicomStoreId': [dicomStoreId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -966,10 +929,9 @@
     if (sourceStore == null) {
       throw core.ArgumentError('Parameter sourceStore is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$sourceStore') +
@@ -1010,10 +972,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1062,10 +1023,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':export';
@@ -1104,10 +1064,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1159,15 +1118,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1217,10 +1172,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':import';
@@ -1272,19 +1226,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1335,13 +1282,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1399,10 +1343,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1460,10 +1403,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1521,10 +1463,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1574,10 +1515,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1641,10 +1581,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1697,10 +1636,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1769,10 +1707,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1831,10 +1768,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1892,10 +1828,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1954,10 +1889,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2015,10 +1949,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2082,10 +2015,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2158,10 +2090,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2220,10 +2151,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2281,10 +2211,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2343,10 +2272,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2417,10 +2345,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2483,10 +2410,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2548,10 +2474,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2612,10 +2537,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2684,10 +2608,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2749,10 +2672,9 @@
     if (dicomWebPath == null) {
       throw core.ArgumentError('Parameter dicomWebPath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2811,13 +2733,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fhirStoreId != null) {
-      _queryParams['fhirStoreId'] = [fhirStoreId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fhirStoreId != null) 'fhirStoreId': [fhirStoreId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2869,10 +2788,9 @@
     if (sourceStore == null) {
       throw core.ArgumentError('Parameter sourceStore is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$sourceStore') +
@@ -2912,10 +2830,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2967,10 +2884,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':export';
@@ -3009,10 +2925,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3063,15 +2978,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3173,10 +3084,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':import';
@@ -3228,19 +3138,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3291,13 +3194,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3345,10 +3245,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3400,10 +3299,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3503,28 +3401,15 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (P_count != null) {
-      _queryParams['_count'] = ['${P_count}'];
-    }
-    if (P_pageToken != null) {
-      _queryParams['_page_token'] = [P_pageToken];
-    }
-    if (P_since != null) {
-      _queryParams['_since'] = [P_since];
-    }
-    if (P_type != null) {
-      _queryParams['_type'] = [P_type];
-    }
-    if (end != null) {
-      _queryParams['end'] = [end];
-    }
-    if (start != null) {
-      _queryParams['start'] = [start];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (P_count != null) '_count': ['${P_count}'],
+      if (P_pageToken != null) '_page_token': [P_pageToken],
+      if (P_since != null) '_since': [P_since],
+      if (P_type != null) '_type': [P_type],
+      if (end != null) 'end': [end],
+      if (start != null) 'start': [start],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -3570,10 +3455,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/\$purge';
@@ -3625,10 +3509,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -3700,10 +3583,9 @@
     if (type == null) {
       throw core.ArgumentError('Parameter type is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3755,10 +3637,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3827,10 +3708,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/fhir';
@@ -3910,22 +3790,13 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (P_at != null) {
-      _queryParams['_at'] = [P_at];
-    }
-    if (P_count != null) {
-      _queryParams['_count'] = ['${P_count}'];
-    }
-    if (P_pageToken != null) {
-      _queryParams['_page_token'] = [P_pageToken];
-    }
-    if (P_since != null) {
-      _queryParams['_since'] = [P_since];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (P_at != null) '_at': [P_at],
+      if (P_count != null) '_count': ['${P_count}'],
+      if (P_pageToken != null) '_page_token': [P_pageToken],
+      if (P_since != null) '_since': [P_since],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/_history';
@@ -3984,10 +3855,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4043,10 +3913,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4134,10 +4003,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4238,10 +4106,9 @@
     if (resourceType == null) {
       throw core.ArgumentError('Parameter resourceType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4311,10 +4178,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4365,10 +4231,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4424,13 +4289,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (hl7V2StoreId != null) {
-      _queryParams['hl7V2StoreId'] = [hl7V2StoreId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (hl7V2StoreId != null) 'hl7V2StoreId': [hl7V2StoreId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4472,10 +4334,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4512,10 +4373,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4567,15 +4427,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -4627,19 +4483,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4690,13 +4539,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4745,10 +4591,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -4800,10 +4645,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -4864,10 +4708,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/messages';
@@ -4906,10 +4749,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4958,13 +4800,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5016,10 +4855,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -5111,25 +4949,14 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/messages';
@@ -5186,13 +5013,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5251,10 +5075,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -5296,10 +5119,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5354,19 +5176,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/homegraph/v1.dart b/generated/googleapis/lib/homegraph/v1.dart
index b712ba7..9fa648d 100644
--- a/generated/googleapis/lib/homegraph/v1.dart
+++ b/generated/googleapis/lib/homegraph/v1.dart
@@ -92,13 +92,10 @@
     if (agentUserId == null) {
       throw core.ArgumentError('Parameter agentUserId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$agentUserId');
 
@@ -143,10 +140,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/devices:query';
 
@@ -194,10 +190,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/devices:reportStateAndNotification';
 
@@ -239,10 +234,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/devices:requestSync';
 
@@ -282,10 +276,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/devices:sync';
 
diff --git a/generated/googleapis/lib/iam/v1.dart b/generated/googleapis/lib/iam/v1.dart
index 1722832..510e7d4 100644
--- a/generated/googleapis/lib/iam/v1.dart
+++ b/generated/googleapis/lib/iam/v1.dart
@@ -107,10 +107,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/iamPolicies:lintPolicy';
 
@@ -150,10 +149,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/iamPolicies:queryAuditableServices';
 
@@ -225,10 +223,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/roles';
@@ -294,13 +291,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (etag != null) {
-      _queryParams['etag'] = [etag];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (etag != null) 'etag': [etag],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -357,10 +351,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -437,22 +430,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/roles';
@@ -514,13 +498,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -578,10 +559,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':undelete';
@@ -626,10 +606,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/permissions:queryTestablePermissions';
 
@@ -712,10 +691,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -776,10 +754,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -840,10 +817,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/roles';
@@ -909,13 +885,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (etag != null) {
-      _queryParams['etag'] = [etag];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (etag != null) 'etag': [etag],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -972,10 +945,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1052,22 +1024,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/roles';
@@ -1129,13 +1092,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1193,10 +1153,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':undelete';
@@ -1250,10 +1209,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1308,10 +1266,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1368,10 +1325,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':disable';
@@ -1423,10 +1379,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':enable';
@@ -1468,10 +1423,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1528,15 +1482,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1585,16 +1535,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1649,10 +1594,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1707,10 +1651,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1768,10 +1711,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':signBlob';
@@ -1829,10 +1771,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':signJwt';
@@ -1879,10 +1820,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1935,10 +1875,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':undelete';
@@ -1996,10 +1935,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2053,10 +1991,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/keys';
@@ -2104,10 +2041,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2157,13 +2093,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (publicKeyType != null) {
-      _queryParams['publicKeyType'] = [publicKeyType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (publicKeyType != null) 'publicKeyType': [publicKeyType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2209,13 +2142,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (keyTypes != null) {
-      _queryParams['keyTypes'] = keyTypes;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (keyTypes != null) 'keyTypes': keyTypes,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/keys';
@@ -2262,10 +2192,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/keys:upload';
@@ -2331,10 +2260,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2407,25 +2335,14 @@
     core.String view,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parent != null) 'parent': [parent],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/roles';
 
@@ -2463,10 +2380,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/roles:queryGrantableRoles';
 
diff --git a/generated/googleapis/lib/iamcredentials/v1.dart b/generated/googleapis/lib/iamcredentials/v1.dart
index 443ba6a..bc3c12a 100644
--- a/generated/googleapis/lib/iamcredentials/v1.dart
+++ b/generated/googleapis/lib/iamcredentials/v1.dart
@@ -106,10 +106,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -157,10 +156,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -208,10 +206,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':signBlob';
@@ -258,10 +255,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':signJwt';
diff --git a/generated/googleapis/lib/iap/v1.dart b/generated/googleapis/lib/iap/v1.dart
index e776b77..5e3845e 100644
--- a/generated/googleapis/lib/iap/v1.dart
+++ b/generated/googleapis/lib/iap/v1.dart
@@ -112,10 +112,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/brands';
@@ -154,10 +153,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -194,10 +192,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/brands';
@@ -252,10 +249,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -302,10 +298,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -346,10 +341,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -400,16 +394,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -459,10 +448,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':resetSecret';
@@ -518,10 +506,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -562,10 +549,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':iapSettings';
@@ -615,10 +601,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -668,10 +653,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -723,13 +707,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':iapSettings';
diff --git a/generated/googleapis/lib/identitytoolkit/v3.dart b/generated/googleapis/lib/identitytoolkit/v3.dart
index b741315..855b4b8 100644
--- a/generated/googleapis/lib/identitytoolkit/v3.dart
+++ b/generated/googleapis/lib/identitytoolkit/v3.dart
@@ -86,10 +86,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'createAuthUri';
 
@@ -125,10 +124,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'deleteAccount';
 
@@ -164,10 +162,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'downloadAccount';
 
@@ -203,10 +200,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'emailLinkSignin';
 
@@ -242,10 +238,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'getAccountInfo';
 
@@ -281,10 +276,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'getOobConfirmationCode';
 
@@ -322,16 +316,12 @@
     core.String projectNumber,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (delegatedProjectNumber != null) {
-      _queryParams['delegatedProjectNumber'] = [delegatedProjectNumber];
-    }
-    if (projectNumber != null) {
-      _queryParams['projectNumber'] = [projectNumber];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (delegatedProjectNumber != null)
+        'delegatedProjectNumber': [delegatedProjectNumber],
+      if (projectNumber != null) 'projectNumber': [projectNumber],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'getProjectConfig';
 
@@ -361,10 +351,9 @@
   async.Future<IdentitytoolkitRelyingpartyGetPublicKeysResponse> getPublicKeys({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'publicKeys';
 
@@ -394,10 +383,9 @@
   async.Future<GetRecaptchaParamResponse> getRecaptchaParam({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'getRecaptchaParam';
 
@@ -432,10 +420,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'resetPassword';
 
@@ -473,10 +460,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'sendVerificationCode';
 
@@ -512,10 +498,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'setAccountInfo';
 
@@ -552,10 +537,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'setProjectConfig';
 
@@ -591,10 +575,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'signOutUser';
 
@@ -630,10 +613,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'signupNewUser';
 
@@ -669,10 +651,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'uploadAccount';
 
@@ -708,10 +689,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'verifyAssertion';
 
@@ -747,10 +727,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'verifyCustomToken';
 
@@ -786,10 +765,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'verifyPassword';
 
@@ -827,10 +805,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'verifyPhoneNumber';
 
diff --git a/generated/googleapis/lib/indexing/v3.dart b/generated/googleapis/lib/indexing/v3.dart
index b238283..fb5f49b 100644
--- a/generated/googleapis/lib/indexing/v3.dart
+++ b/generated/googleapis/lib/indexing/v3.dart
@@ -84,13 +84,10 @@
     core.String url,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (url != null) {
-      _queryParams['url'] = [url];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (url != null) 'url': [url],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v3/urlNotifications/metadata';
 
@@ -125,10 +122,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v3/urlNotifications:publish';
 
diff --git a/generated/googleapis/lib/jobs/v3.dart b/generated/googleapis/lib/jobs/v3.dart
index 18ee3d4..63e3a5e 100644
--- a/generated/googleapis/lib/jobs/v3.dart
+++ b/generated/googleapis/lib/jobs/v3.dart
@@ -158,31 +158,16 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (companyName != null) {
-      _queryParams['companyName'] = [companyName];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (languageCodes != null) {
-      _queryParams['languageCodes'] = languageCodes;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (scope != null) {
-      _queryParams['scope'] = [scope];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (companyName != null) 'companyName': [companyName],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (languageCodes != null) 'languageCodes': languageCodes,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (query != null) 'query': [query],
+      if (scope != null) 'scope': [scope],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':complete';
@@ -238,10 +223,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -294,10 +278,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/companies';
@@ -339,10 +322,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -380,10 +362,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -434,19 +415,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (requireOpenJobs != null) {
-      _queryParams['requireOpenJobs'] = ['${requireOpenJobs}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (requireOpenJobs != null) 'requireOpenJobs': ['${requireOpenJobs}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/companies';
@@ -495,10 +469,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -548,10 +521,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -600,10 +572,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
@@ -646,10 +617,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -688,10 +658,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -763,22 +732,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (jobView != null) {
-      _queryParams['jobView'] = [jobView];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (jobView != null) 'jobView': [jobView],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
@@ -829,10 +789,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -879,10 +838,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -936,10 +894,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/jobs/v4.dart b/generated/googleapis/lib/jobs/v4.dart
index 51da26e..1b31fac 100644
--- a/generated/googleapis/lib/jobs/v4.dart
+++ b/generated/googleapis/lib/jobs/v4.dart
@@ -157,28 +157,15 @@
     if (tenant == null) {
       throw core.ArgumentError('Parameter tenant is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (company != null) {
-      _queryParams['company'] = [company];
-    }
-    if (languageCodes != null) {
-      _queryParams['languageCodes'] = languageCodes;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (scope != null) {
-      _queryParams['scope'] = [scope];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (company != null) 'company': [company],
+      if (languageCodes != null) 'languageCodes': languageCodes,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (query != null) 'query': [query],
+      if (scope != null) 'scope': [scope],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' +
         commons.Escaper.ecapeVariableReserved('$tenant') +
@@ -224,10 +211,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v4/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tenants';
@@ -267,10 +253,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -308,10 +293,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -356,16 +340,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v4/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tenants';
@@ -417,13 +396,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -480,10 +456,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -537,10 +512,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v4/' + commons.Escaper.ecapeVariableReserved('$parent') + '/companies';
@@ -584,10 +558,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -627,10 +600,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -680,19 +652,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (requireOpenJobs != null) {
-      _queryParams['requireOpenJobs'] = ['${requireOpenJobs}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (requireOpenJobs != null) 'requireOpenJobs': ['${requireOpenJobs}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v4/' + commons.Escaper.ecapeVariableReserved('$parent') + '/companies';
@@ -745,13 +710,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -802,10 +764,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -852,10 +813,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -901,10 +861,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -953,10 +912,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v4/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
@@ -999,10 +957,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1041,10 +998,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1118,22 +1074,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (jobView != null) {
-      _queryParams['jobView'] = [jobView];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (jobView != null) 'jobView': [jobView],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v4/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
@@ -1190,13 +1137,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1243,10 +1187,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1300,10 +1243,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/kgsearch/v1.dart b/generated/googleapis/lib/kgsearch/v1.dart
index e41b075..ca2f522 100644
--- a/generated/googleapis/lib/kgsearch/v1.dart
+++ b/generated/googleapis/lib/kgsearch/v1.dart
@@ -100,31 +100,16 @@
     core.List<core.String> types,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ids != null) {
-      _queryParams['ids'] = ids;
-    }
-    if (indent != null) {
-      _queryParams['indent'] = ['${indent}'];
-    }
-    if (languages != null) {
-      _queryParams['languages'] = languages;
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (prefix != null) {
-      _queryParams['prefix'] = ['${prefix}'];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (types != null) {
-      _queryParams['types'] = types;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ids != null) 'ids': ids,
+      if (indent != null) 'indent': ['${indent}'],
+      if (languages != null) 'languages': languages,
+      if (limit != null) 'limit': ['${limit}'],
+      if (prefix != null) 'prefix': ['${prefix}'],
+      if (query != null) 'query': [query],
+      if (types != null) 'types': types,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/entities:search';
 
diff --git a/generated/googleapis/lib/language/v1.dart b/generated/googleapis/lib/language/v1.dart
index d3fe8b6..35e399f 100644
--- a/generated/googleapis/lib/language/v1.dart
+++ b/generated/googleapis/lib/language/v1.dart
@@ -91,10 +91,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/documents:analyzeEntities';
 
@@ -131,10 +130,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/documents:analyzeEntitySentiment';
 
@@ -170,10 +168,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/documents:analyzeSentiment';
 
@@ -211,10 +208,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/documents:analyzeSyntax';
 
@@ -251,10 +247,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/documents:annotateText';
 
@@ -290,10 +285,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/documents:classifyText';
 
diff --git a/generated/googleapis/lib/libraryagent/v1.dart b/generated/googleapis/lib/libraryagent/v1.dart
index 57fa426..ecd80a3 100644
--- a/generated/googleapis/lib/libraryagent/v1.dart
+++ b/generated/googleapis/lib/libraryagent/v1.dart
@@ -87,10 +87,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -133,16 +132,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/shelves';
 
@@ -189,10 +183,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':borrow';
@@ -232,10 +225,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -285,16 +277,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/books';
@@ -336,10 +323,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':return';
diff --git a/generated/googleapis/lib/licensing/v1.dart b/generated/googleapis/lib/licensing/v1.dart
index 6b32f26..bb6716c 100644
--- a/generated/googleapis/lib/licensing/v1.dart
+++ b/generated/googleapis/lib/licensing/v1.dart
@@ -104,10 +104,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/licensing/v1/product/' +
         commons.Escaper.ecapeVariable('$productId') +
@@ -165,10 +164,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/licensing/v1/product/' +
         commons.Escaper.ecapeVariable('$productId') +
@@ -222,10 +220,9 @@
     if (skuId == null) {
       throw core.ArgumentError('Parameter skuId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/licensing/v1/product/' +
         commons.Escaper.ecapeVariable('$productId') +
@@ -284,20 +281,15 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    _queryParams['customerId'] = [customerId];
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'customerId': [customerId],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/licensing/v1/product/' +
         commons.Escaper.ecapeVariable('$productId') +
@@ -360,20 +352,15 @@
     if (skuId == null) {
       throw core.ArgumentError('Parameter skuId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    _queryParams['customerId'] = [customerId];
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'customerId': [customerId],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/licensing/v1/product/' +
         commons.Escaper.ecapeVariable('$productId') +
@@ -438,10 +425,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/licensing/v1/product/' +
         commons.Escaper.ecapeVariable('$productId') +
@@ -506,10 +492,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/licensing/v1/product/' +
         commons.Escaper.ecapeVariable('$productId') +
diff --git a/generated/googleapis/lib/localservices/v1.dart b/generated/googleapis/lib/localservices/v1.dart
index 792fa28..28b1a23 100644
--- a/generated/googleapis/lib/localservices/v1.dart
+++ b/generated/googleapis/lib/localservices/v1.dart
@@ -126,37 +126,18 @@
     core.int startDate_year,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endDate_day != null) {
-      _queryParams['endDate.day'] = ['${endDate_day}'];
-    }
-    if (endDate_month != null) {
-      _queryParams['endDate.month'] = ['${endDate_month}'];
-    }
-    if (endDate_year != null) {
-      _queryParams['endDate.year'] = ['${endDate_year}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (startDate_day != null) {
-      _queryParams['startDate.day'] = ['${startDate_day}'];
-    }
-    if (startDate_month != null) {
-      _queryParams['startDate.month'] = ['${startDate_month}'];
-    }
-    if (startDate_year != null) {
-      _queryParams['startDate.year'] = ['${startDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endDate_day != null) 'endDate.day': ['${endDate_day}'],
+      if (endDate_month != null) 'endDate.month': ['${endDate_month}'],
+      if (endDate_year != null) 'endDate.year': ['${endDate_year}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if (startDate_day != null) 'startDate.day': ['${startDate_day}'],
+      if (startDate_month != null) 'startDate.month': ['${startDate_month}'],
+      if (startDate_year != null) 'startDate.year': ['${startDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/accountReports:search';
 
@@ -245,37 +226,18 @@
     core.int startDate_year,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endDate_day != null) {
-      _queryParams['endDate.day'] = ['${endDate_day}'];
-    }
-    if (endDate_month != null) {
-      _queryParams['endDate.month'] = ['${endDate_month}'];
-    }
-    if (endDate_year != null) {
-      _queryParams['endDate.year'] = ['${endDate_year}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (startDate_day != null) {
-      _queryParams['startDate.day'] = ['${startDate_day}'];
-    }
-    if (startDate_month != null) {
-      _queryParams['startDate.month'] = ['${startDate_month}'];
-    }
-    if (startDate_year != null) {
-      _queryParams['startDate.year'] = ['${startDate_year}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endDate_day != null) 'endDate.day': ['${endDate_day}'],
+      if (endDate_month != null) 'endDate.month': ['${endDate_month}'],
+      if (endDate_year != null) 'endDate.year': ['${endDate_year}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if (startDate_day != null) 'startDate.day': ['${startDate_day}'],
+      if (startDate_month != null) 'startDate.month': ['${startDate_month}'],
+      if (startDate_year != null) 'startDate.year': ['${startDate_year}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/detailedLeadReports:search';
 
diff --git a/generated/googleapis/lib/logging/v2.dart b/generated/googleapis/lib/logging/v2.dart
index fbcbed7..52cf95b 100644
--- a/generated/googleapis/lib/logging/v2.dart
+++ b/generated/googleapis/lib/logging/v2.dart
@@ -184,10 +184,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -234,10 +233,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -291,10 +289,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -339,10 +336,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -383,10 +379,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -436,16 +431,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -502,13 +492,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -556,10 +543,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -604,19 +590,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -678,13 +657,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (bucketId != null) {
-      _queryParams['bucketId'] = [bucketId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (bucketId != null) 'bucketId': [bucketId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -732,10 +708,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -788,16 +763,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -864,13 +834,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -922,10 +889,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':undelete';
@@ -984,13 +950,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (viewId != null) {
-      _queryParams['viewId'] = [viewId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (viewId != null) 'viewId': [viewId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -1032,10 +995,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1084,16 +1046,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -1151,13 +1108,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1213,10 +1167,9 @@
     if (logName == null) {
       throw core.ArgumentError('Parameter logName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$logName');
 
@@ -1277,19 +1230,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (resourceNames != null) {
-      _queryParams['resourceNames'] = resourceNames;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (resourceNames != null) 'resourceNames': resourceNames,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/logs';
@@ -1358,13 +1304,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -1411,10 +1355,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -1455,10 +1398,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -1507,16 +1449,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -1590,16 +1527,12 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -1672,16 +1605,12 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -1727,10 +1656,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/entries:list';
 
@@ -1768,10 +1696,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/entries:tail';
 
@@ -1813,10 +1740,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/entries:write';
 
@@ -1871,10 +1797,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1919,10 +1844,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1963,10 +1887,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2016,16 +1939,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2082,13 +2000,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2156,10 +2071,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2204,10 +2118,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2248,10 +2161,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2301,16 +2213,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2367,13 +2274,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2420,10 +2324,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2468,19 +2371,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -2542,13 +2438,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (bucketId != null) {
-      _queryParams['bucketId'] = [bucketId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (bucketId != null) 'bucketId': [bucketId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -2596,10 +2489,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2642,10 +2534,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2698,16 +2589,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -2774,13 +2660,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2832,10 +2715,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':undelete';
@@ -2894,13 +2776,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (viewId != null) {
-      _queryParams['viewId'] = [viewId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (viewId != null) 'viewId': [viewId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -2942,10 +2821,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2985,10 +2863,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3037,16 +2914,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -3104,13 +2976,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3165,10 +3034,9 @@
     if (logName == null) {
       throw core.ArgumentError('Parameter logName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$logName');
 
@@ -3229,19 +3097,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (resourceNames != null) {
-      _queryParams['resourceNames'] = resourceNames;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (resourceNames != null) 'resourceNames': resourceNames,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/logs';
@@ -3309,13 +3170,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -3362,10 +3221,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -3406,10 +3264,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -3458,16 +3315,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -3541,16 +3393,12 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -3623,16 +3471,12 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -3677,10 +3521,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3725,19 +3568,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -3798,13 +3634,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (bucketId != null) {
-      _queryParams['bucketId'] = [bucketId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (bucketId != null) 'bucketId': [bucketId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -3852,10 +3685,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3898,10 +3730,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3954,16 +3785,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -4030,13 +3856,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4088,10 +3911,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':undelete';
@@ -4150,13 +3972,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (viewId != null) {
-      _queryParams['viewId'] = [viewId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (viewId != null) 'viewId': [viewId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -4198,10 +4017,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4241,10 +4059,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4293,16 +4110,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -4360,13 +4172,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4421,10 +4230,9 @@
     if (logName == null) {
       throw core.ArgumentError('Parameter logName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$logName');
 
@@ -4485,19 +4293,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (resourceNames != null) {
-      _queryParams['resourceNames'] = resourceNames;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (resourceNames != null) 'resourceNames': resourceNames,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/logs';
@@ -4546,16 +4347,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/monitoredResourceDescriptors';
 
@@ -4619,10 +4415,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -4689,13 +4484,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -4753,10 +4545,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4801,10 +4592,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4845,10 +4635,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4898,16 +4687,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4964,13 +4748,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5018,10 +4799,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5066,19 +4846,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -5140,13 +4913,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (bucketId != null) {
-      _queryParams['bucketId'] = [bucketId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (bucketId != null) 'bucketId': [bucketId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -5194,10 +4964,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5240,10 +5009,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5296,16 +5064,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -5372,13 +5135,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5430,10 +5190,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':undelete';
@@ -5492,13 +5251,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (viewId != null) {
-      _queryParams['viewId'] = [viewId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (viewId != null) 'viewId': [viewId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -5540,10 +5296,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5583,10 +5338,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5635,16 +5389,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -5702,13 +5451,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -5763,10 +5509,9 @@
     if (logName == null) {
       throw core.ArgumentError('Parameter logName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$logName');
 
@@ -5827,19 +5572,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (resourceNames != null) {
-      _queryParams['resourceNames'] = resourceNames;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (resourceNames != null) 'resourceNames': resourceNames,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/logs';
@@ -5907,13 +5645,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -5960,10 +5696,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -6004,10 +5739,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -6056,16 +5790,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -6139,16 +5868,12 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -6221,16 +5946,12 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -6298,10 +6019,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -6346,10 +6066,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6390,10 +6109,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6443,16 +6161,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -6509,13 +6222,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6562,10 +6272,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6610,19 +6319,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -6684,13 +6386,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (bucketId != null) {
-      _queryParams['bucketId'] = [bucketId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (bucketId != null) 'bucketId': [bucketId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -6738,10 +6437,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6784,10 +6482,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6840,16 +6537,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/buckets';
@@ -6916,13 +6608,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -6974,10 +6663,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + ':undelete';
@@ -7036,13 +6724,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (viewId != null) {
-      _queryParams['viewId'] = [viewId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (viewId != null) 'viewId': [viewId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -7084,10 +6769,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7127,10 +6811,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7179,16 +6862,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/views';
@@ -7246,13 +6924,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -7307,10 +6982,9 @@
     if (logName == null) {
       throw core.ArgumentError('Parameter logName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$logName');
 
@@ -7371,19 +7045,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (resourceNames != null) {
-      _queryParams['resourceNames'] = resourceNames;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (resourceNames != null) 'resourceNames': resourceNames,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/logs';
@@ -7434,10 +7101,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/metrics';
@@ -7476,10 +7142,9 @@
     if (metricName == null) {
       throw core.ArgumentError('Parameter metricName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$metricName');
 
@@ -7516,10 +7181,9 @@
     if (metricName == null) {
       throw core.ArgumentError('Parameter metricName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$metricName');
 
@@ -7567,16 +7231,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/metrics';
@@ -7623,10 +7282,9 @@
     if (metricName == null) {
       throw core.ArgumentError('Parameter metricName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$metricName');
 
@@ -7693,13 +7351,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -7746,10 +7402,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -7790,10 +7445,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -7842,16 +7496,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -7925,16 +7574,12 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -8007,16 +7652,12 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -8083,13 +7724,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -8136,10 +7775,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -8180,10 +7818,9 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -8232,16 +7869,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sinks';
@@ -8315,16 +7947,12 @@
     if (sinkName == null) {
       throw core.ArgumentError('Parameter sinkName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (uniqueWriterIdentity != null) {
-      _queryParams['uniqueWriterIdentity'] = ['${uniqueWriterIdentity}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (uniqueWriterIdentity != null)
+        'uniqueWriterIdentity': ['${uniqueWriterIdentity}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$sinkName');
 
@@ -8380,10 +8008,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -8450,13 +8077,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
diff --git a/generated/googleapis/lib/managedidentities/v1.dart b/generated/googleapis/lib/managedidentities/v1.dart
index 9a09cd8..ac83bf5 100644
--- a/generated/googleapis/lib/managedidentities/v1.dart
+++ b/generated/googleapis/lib/managedidentities/v1.dart
@@ -104,10 +104,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -152,19 +151,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -229,10 +221,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':attachTrust';
@@ -286,13 +277,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (domainName != null) {
-      _queryParams['domainName'] = [domainName];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (domainName != null) 'domainName': [domainName],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/domains';
@@ -332,10 +320,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -379,10 +366,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':detachTrust';
@@ -422,10 +408,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -476,15 +461,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -543,22 +524,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/domains';
@@ -609,13 +581,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -660,10 +629,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -709,10 +677,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -763,10 +730,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -818,10 +784,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -870,10 +835,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -934,10 +898,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -980,10 +943,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1023,10 +985,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1080,19 +1041,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/manufacturers/v1.dart b/generated/googleapis/lib/manufacturers/v1.dart
index 4044562..9af6abd 100644
--- a/generated/googleapis/lib/manufacturers/v1.dart
+++ b/generated/googleapis/lib/manufacturers/v1.dart
@@ -106,10 +106,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -172,13 +171,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (include != null) {
-      _queryParams['include'] = include;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (include != null) 'include': include,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -229,19 +225,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (include != null) {
-      _queryParams['include'] = include;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (include != null) 'include': include,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/products';
@@ -311,10 +300,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/memcache/v1.dart b/generated/googleapis/lib/memcache/v1.dart
index 160e958..ad8c0ce 100644
--- a/generated/googleapis/lib/memcache/v1.dart
+++ b/generated/googleapis/lib/memcache/v1.dart
@@ -103,10 +103,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -151,19 +150,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -216,10 +208,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -273,13 +264,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (instanceId != null) {
-      _queryParams['instanceId'] = [instanceId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (instanceId != null) 'instanceId': [instanceId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -320,10 +308,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -362,10 +349,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -422,22 +408,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -490,13 +467,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -544,10 +518,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -608,10 +581,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -654,10 +626,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -697,10 +668,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -754,19 +724,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/ml/v1.dart b/generated/googleapis/lib/ml/v1.dart
index 359ecf7..aa2a893 100644
--- a/generated/googleapis/lib/ml/v1.dart
+++ b/generated/googleapis/lib/ml/v1.dart
@@ -112,10 +112,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':explain';
@@ -158,10 +157,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':getConfig';
@@ -208,10 +206,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':predict';
@@ -261,10 +258,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -308,10 +304,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
@@ -350,10 +345,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -404,15 +398,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -474,19 +464,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
@@ -543,13 +526,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -597,10 +577,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -652,10 +631,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -707,10 +685,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -760,16 +737,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/locations';
@@ -824,10 +796,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -869,10 +840,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -929,13 +899,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (studyId != null) {
-      _queryParams['studyId'] = [studyId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (studyId != null) 'studyId': [studyId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/studies';
@@ -975,10 +942,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1016,10 +982,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1057,10 +1022,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/studies';
@@ -1114,10 +1078,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1166,10 +1129,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1215,10 +1177,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':complete';
@@ -1263,10 +1224,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/trials';
@@ -1306,10 +1266,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1347,10 +1306,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1388,10 +1346,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/trials';
@@ -1440,10 +1397,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1489,10 +1445,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':stop';
@@ -1542,10 +1497,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1602,10 +1556,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/models';
@@ -1647,10 +1600,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1689,10 +1641,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1743,15 +1694,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1809,19 +1756,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/models';
@@ -1876,13 +1816,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1930,10 +1867,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1985,10 +1921,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2047,10 +1982,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/versions';
@@ -2096,10 +2030,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2141,10 +2074,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2201,19 +2133,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/versions';
@@ -2271,13 +2196,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2328,10 +2250,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':setDefault';
@@ -2385,10 +2306,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -2429,10 +2349,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2487,19 +2406,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/monitoring/v3.dart b/generated/googleapis/lib/monitoring/v3.dart
index 23a3e79..adb1b78 100644
--- a/generated/googleapis/lib/monitoring/v3.dart
+++ b/generated/googleapis/lib/monitoring/v3.dart
@@ -597,68 +597,40 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (aggregation_alignmentPeriod != null) {
-      _queryParams['aggregation.alignmentPeriod'] = [
-        aggregation_alignmentPeriod
-      ];
-    }
-    if (aggregation_crossSeriesReducer != null) {
-      _queryParams['aggregation.crossSeriesReducer'] = [
-        aggregation_crossSeriesReducer
-      ];
-    }
-    if (aggregation_groupByFields != null) {
-      _queryParams['aggregation.groupByFields'] = aggregation_groupByFields;
-    }
-    if (aggregation_perSeriesAligner != null) {
-      _queryParams['aggregation.perSeriesAligner'] = [
-        aggregation_perSeriesAligner
-      ];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (interval_endTime != null) {
-      _queryParams['interval.endTime'] = [interval_endTime];
-    }
-    if (interval_startTime != null) {
-      _queryParams['interval.startTime'] = [interval_startTime];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (secondaryAggregation_alignmentPeriod != null) {
-      _queryParams['secondaryAggregation.alignmentPeriod'] = [
-        secondaryAggregation_alignmentPeriod
-      ];
-    }
-    if (secondaryAggregation_crossSeriesReducer != null) {
-      _queryParams['secondaryAggregation.crossSeriesReducer'] = [
-        secondaryAggregation_crossSeriesReducer
-      ];
-    }
-    if (secondaryAggregation_groupByFields != null) {
-      _queryParams['secondaryAggregation.groupByFields'] =
-          secondaryAggregation_groupByFields;
-    }
-    if (secondaryAggregation_perSeriesAligner != null) {
-      _queryParams['secondaryAggregation.perSeriesAligner'] = [
-        secondaryAggregation_perSeriesAligner
-      ];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (aggregation_alignmentPeriod != null)
+        'aggregation.alignmentPeriod': [aggregation_alignmentPeriod],
+      if (aggregation_crossSeriesReducer != null)
+        'aggregation.crossSeriesReducer': [aggregation_crossSeriesReducer],
+      if (aggregation_groupByFields != null)
+        'aggregation.groupByFields': aggregation_groupByFields,
+      if (aggregation_perSeriesAligner != null)
+        'aggregation.perSeriesAligner': [aggregation_perSeriesAligner],
+      if (filter != null) 'filter': [filter],
+      if (interval_endTime != null) 'interval.endTime': [interval_endTime],
+      if (interval_startTime != null)
+        'interval.startTime': [interval_startTime],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (secondaryAggregation_alignmentPeriod != null)
+        'secondaryAggregation.alignmentPeriod': [
+          secondaryAggregation_alignmentPeriod
+        ],
+      if (secondaryAggregation_crossSeriesReducer != null)
+        'secondaryAggregation.crossSeriesReducer': [
+          secondaryAggregation_crossSeriesReducer
+        ],
+      if (secondaryAggregation_groupByFields != null)
+        'secondaryAggregation.groupByFields':
+            secondaryAggregation_groupByFields,
+      if (secondaryAggregation_perSeriesAligner != null)
+        'secondaryAggregation.perSeriesAligner': [
+          secondaryAggregation_perSeriesAligner
+        ],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/timeSeries';
@@ -1172,68 +1144,40 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (aggregation_alignmentPeriod != null) {
-      _queryParams['aggregation.alignmentPeriod'] = [
-        aggregation_alignmentPeriod
-      ];
-    }
-    if (aggregation_crossSeriesReducer != null) {
-      _queryParams['aggregation.crossSeriesReducer'] = [
-        aggregation_crossSeriesReducer
-      ];
-    }
-    if (aggregation_groupByFields != null) {
-      _queryParams['aggregation.groupByFields'] = aggregation_groupByFields;
-    }
-    if (aggregation_perSeriesAligner != null) {
-      _queryParams['aggregation.perSeriesAligner'] = [
-        aggregation_perSeriesAligner
-      ];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (interval_endTime != null) {
-      _queryParams['interval.endTime'] = [interval_endTime];
-    }
-    if (interval_startTime != null) {
-      _queryParams['interval.startTime'] = [interval_startTime];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (secondaryAggregation_alignmentPeriod != null) {
-      _queryParams['secondaryAggregation.alignmentPeriod'] = [
-        secondaryAggregation_alignmentPeriod
-      ];
-    }
-    if (secondaryAggregation_crossSeriesReducer != null) {
-      _queryParams['secondaryAggregation.crossSeriesReducer'] = [
-        secondaryAggregation_crossSeriesReducer
-      ];
-    }
-    if (secondaryAggregation_groupByFields != null) {
-      _queryParams['secondaryAggregation.groupByFields'] =
-          secondaryAggregation_groupByFields;
-    }
-    if (secondaryAggregation_perSeriesAligner != null) {
-      _queryParams['secondaryAggregation.perSeriesAligner'] = [
-        secondaryAggregation_perSeriesAligner
-      ];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (aggregation_alignmentPeriod != null)
+        'aggregation.alignmentPeriod': [aggregation_alignmentPeriod],
+      if (aggregation_crossSeriesReducer != null)
+        'aggregation.crossSeriesReducer': [aggregation_crossSeriesReducer],
+      if (aggregation_groupByFields != null)
+        'aggregation.groupByFields': aggregation_groupByFields,
+      if (aggregation_perSeriesAligner != null)
+        'aggregation.perSeriesAligner': [aggregation_perSeriesAligner],
+      if (filter != null) 'filter': [filter],
+      if (interval_endTime != null) 'interval.endTime': [interval_endTime],
+      if (interval_startTime != null)
+        'interval.startTime': [interval_startTime],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (secondaryAggregation_alignmentPeriod != null)
+        'secondaryAggregation.alignmentPeriod': [
+          secondaryAggregation_alignmentPeriod
+        ],
+      if (secondaryAggregation_crossSeriesReducer != null)
+        'secondaryAggregation.crossSeriesReducer': [
+          secondaryAggregation_crossSeriesReducer
+        ],
+      if (secondaryAggregation_groupByFields != null)
+        'secondaryAggregation.groupByFields':
+            secondaryAggregation_groupByFields,
+      if (secondaryAggregation_perSeriesAligner != null)
+        'secondaryAggregation.perSeriesAligner': [
+          secondaryAggregation_perSeriesAligner
+        ],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/timeSeries';
@@ -1317,10 +1261,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1362,10 +1305,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1402,10 +1344,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1468,22 +1409,13 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1555,13 +1487,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1615,10 +1544,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1677,13 +1605,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (validateOnly != null) {
-      _queryParams['validateOnly'] = ['${validateOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (validateOnly != null) 'validateOnly': ['${validateOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/groups';
@@ -1727,13 +1652,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (recursive != null) {
-      _queryParams['recursive'] = ['${recursive}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (recursive != null) 'recursive': ['${recursive}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1770,10 +1692,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1841,25 +1762,15 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ancestorsOfGroup != null) {
-      _queryParams['ancestorsOfGroup'] = [ancestorsOfGroup];
-    }
-    if (childrenOfGroup != null) {
-      _queryParams['childrenOfGroup'] = [childrenOfGroup];
-    }
-    if (descendantsOfGroup != null) {
-      _queryParams['descendantsOfGroup'] = [descendantsOfGroup];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ancestorsOfGroup != null) 'ancestorsOfGroup': [ancestorsOfGroup],
+      if (childrenOfGroup != null) 'childrenOfGroup': [childrenOfGroup],
+      if (descendantsOfGroup != null)
+        'descendantsOfGroup': [descendantsOfGroup],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/groups';
@@ -1912,13 +1823,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (validateOnly != null) {
-      _queryParams['validateOnly'] = ['${validateOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (validateOnly != null) 'validateOnly': ['${validateOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1989,25 +1897,15 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (interval_endTime != null) {
-      _queryParams['interval.endTime'] = [interval_endTime];
-    }
-    if (interval_startTime != null) {
-      _queryParams['interval.startTime'] = [interval_startTime];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (interval_endTime != null) 'interval.endTime': [interval_endTime],
+      if (interval_startTime != null)
+        'interval.startTime': [interval_startTime],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/members';
@@ -2061,10 +1959,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2110,10 +2007,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2155,10 +2051,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2217,19 +2112,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2281,10 +2169,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2342,19 +2229,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2406,10 +2286,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2464,16 +2343,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2530,10 +2404,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2581,13 +2454,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2631,10 +2501,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2699,10 +2568,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2769,22 +2637,13 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2835,13 +2694,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2888,10 +2744,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2937,10 +2792,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':verify';
@@ -2995,10 +2849,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/timeSeries';
@@ -3496,68 +3349,40 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (aggregation_alignmentPeriod != null) {
-      _queryParams['aggregation.alignmentPeriod'] = [
-        aggregation_alignmentPeriod
-      ];
-    }
-    if (aggregation_crossSeriesReducer != null) {
-      _queryParams['aggregation.crossSeriesReducer'] = [
-        aggregation_crossSeriesReducer
-      ];
-    }
-    if (aggregation_groupByFields != null) {
-      _queryParams['aggregation.groupByFields'] = aggregation_groupByFields;
-    }
-    if (aggregation_perSeriesAligner != null) {
-      _queryParams['aggregation.perSeriesAligner'] = [
-        aggregation_perSeriesAligner
-      ];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (interval_endTime != null) {
-      _queryParams['interval.endTime'] = [interval_endTime];
-    }
-    if (interval_startTime != null) {
-      _queryParams['interval.startTime'] = [interval_startTime];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (secondaryAggregation_alignmentPeriod != null) {
-      _queryParams['secondaryAggregation.alignmentPeriod'] = [
-        secondaryAggregation_alignmentPeriod
-      ];
-    }
-    if (secondaryAggregation_crossSeriesReducer != null) {
-      _queryParams['secondaryAggregation.crossSeriesReducer'] = [
-        secondaryAggregation_crossSeriesReducer
-      ];
-    }
-    if (secondaryAggregation_groupByFields != null) {
-      _queryParams['secondaryAggregation.groupByFields'] =
-          secondaryAggregation_groupByFields;
-    }
-    if (secondaryAggregation_perSeriesAligner != null) {
-      _queryParams['secondaryAggregation.perSeriesAligner'] = [
-        secondaryAggregation_perSeriesAligner
-      ];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (aggregation_alignmentPeriod != null)
+        'aggregation.alignmentPeriod': [aggregation_alignmentPeriod],
+      if (aggregation_crossSeriesReducer != null)
+        'aggregation.crossSeriesReducer': [aggregation_crossSeriesReducer],
+      if (aggregation_groupByFields != null)
+        'aggregation.groupByFields': aggregation_groupByFields,
+      if (aggregation_perSeriesAligner != null)
+        'aggregation.perSeriesAligner': [aggregation_perSeriesAligner],
+      if (filter != null) 'filter': [filter],
+      if (interval_endTime != null) 'interval.endTime': [interval_endTime],
+      if (interval_startTime != null)
+        'interval.startTime': [interval_startTime],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (secondaryAggregation_alignmentPeriod != null)
+        'secondaryAggregation.alignmentPeriod': [
+          secondaryAggregation_alignmentPeriod
+        ],
+      if (secondaryAggregation_crossSeriesReducer != null)
+        'secondaryAggregation.crossSeriesReducer': [
+          secondaryAggregation_crossSeriesReducer
+        ],
+      if (secondaryAggregation_groupByFields != null)
+        'secondaryAggregation.groupByFields':
+            secondaryAggregation_groupByFields,
+      if (secondaryAggregation_perSeriesAligner != null)
+        'secondaryAggregation.perSeriesAligner': [
+          secondaryAggregation_perSeriesAligner
+        ],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/timeSeries';
@@ -3603,10 +3428,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -3659,10 +3483,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3708,10 +3531,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3749,10 +3571,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3803,16 +3624,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3872,13 +3688,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3936,13 +3749,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (serviceId != null) {
-      _queryParams['serviceId'] = [serviceId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (serviceId != null) 'serviceId': [serviceId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/services';
@@ -3981,10 +3791,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4021,10 +3830,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4087,19 +3895,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$parent') + '/services';
@@ -4147,13 +3948,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4208,13 +4006,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (serviceLevelObjectiveId != null) {
-      _queryParams['serviceLevelObjectiveId'] = [serviceLevelObjectiveId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (serviceLevelObjectiveId != null)
+        'serviceLevelObjectiveId': [serviceLevelObjectiveId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4257,10 +4053,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4314,13 +4109,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4388,22 +4180,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4453,13 +4236,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -4508,16 +4288,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v3/uptimeCheckIps';
 
diff --git a/generated/googleapis/lib/networkmanagement/v1.dart b/generated/googleapis/lib/networkmanagement/v1.dart
index e6a41e6..0c71d98 100644
--- a/generated/googleapis/lib/networkmanagement/v1.dart
+++ b/generated/googleapis/lib/networkmanagement/v1.dart
@@ -101,10 +101,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -149,19 +148,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -241,13 +233,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (testId != null) {
-      _queryParams['testId'] = [testId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (testId != null) 'testId': [testId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -288,10 +277,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -329,10 +317,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -384,15 +371,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -453,22 +436,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -529,13 +503,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -588,10 +559,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':rerun';
@@ -640,10 +610,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -695,10 +664,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -760,10 +728,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -806,10 +773,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -849,10 +815,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -906,19 +871,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/notebooks/v1.dart b/generated/googleapis/lib/notebooks/v1.dart
index 6972717..fac8665 100644
--- a/generated/googleapis/lib/notebooks/v1.dart
+++ b/generated/googleapis/lib/notebooks/v1.dart
@@ -112,10 +112,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -160,19 +159,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -228,13 +220,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (environmentId != null) {
-      _queryParams['environmentId'] = [environmentId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (environmentId != null) 'environmentId': [environmentId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -275,10 +264,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -316,10 +304,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -363,16 +350,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -427,13 +409,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (executionId != null) {
-      _queryParams['executionId'] = [executionId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (executionId != null) 'executionId': [executionId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -474,10 +453,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -515,10 +493,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -568,22 +545,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -638,13 +606,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (instanceId != null) {
-      _queryParams['instanceId'] = [instanceId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (instanceId != null) 'instanceId': [instanceId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -684,10 +649,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -725,10 +689,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -779,15 +742,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -827,10 +786,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -871,10 +829,9 @@
     if (notebookInstance == null) {
       throw core.ArgumentError('Parameter notebookInstance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$notebookInstance') +
@@ -921,16 +878,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -979,10 +931,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1032,10 +983,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':report';
@@ -1080,10 +1030,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':reset';
@@ -1128,10 +1077,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1181,10 +1129,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1230,10 +1177,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':setLabels';
@@ -1278,10 +1224,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1327,10 +1272,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':start';
@@ -1375,10 +1319,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':stop';
@@ -1429,10 +1372,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1479,10 +1421,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':upgrade';
@@ -1529,10 +1470,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1593,10 +1533,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1639,10 +1578,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1682,10 +1620,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1739,19 +1676,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -1805,13 +1735,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (scheduleId != null) {
-      _queryParams['scheduleId'] = [scheduleId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (scheduleId != null) 'scheduleId': [scheduleId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/schedules';
@@ -1851,10 +1778,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1892,10 +1818,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1945,22 +1870,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/schedules';
@@ -2005,10 +1921,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':trigger';
diff --git a/generated/googleapis/lib/oauth2/v2.dart b/generated/googleapis/lib/oauth2/v2.dart
index 25095bf..13810f1 100644
--- a/generated/googleapis/lib/oauth2/v2.dart
+++ b/generated/googleapis/lib/oauth2/v2.dart
@@ -84,16 +84,11 @@
     core.String idToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (accessToken != null) {
-      _queryParams['access_token'] = [accessToken];
-    }
-    if (idToken != null) {
-      _queryParams['id_token'] = [idToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (accessToken != null) 'access_token': [accessToken],
+      if (idToken != null) 'id_token': [idToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'oauth2/v2/tokeninfo';
 
@@ -128,10 +123,9 @@
   async.Future<Userinfo> get({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'oauth2/v2/userinfo';
 
@@ -172,10 +166,9 @@
   async.Future<Userinfo> get({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'userinfo/v2/me';
 
diff --git a/generated/googleapis/lib/osconfig/v1.dart b/generated/googleapis/lib/osconfig/v1.dart
index cc8e198..c929b3b 100644
--- a/generated/googleapis/lib/osconfig/v1.dart
+++ b/generated/googleapis/lib/osconfig/v1.dart
@@ -113,13 +113,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (patchDeploymentId != null) {
-      _queryParams['patchDeploymentId'] = [patchDeploymentId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (patchDeploymentId != null) 'patchDeploymentId': [patchDeploymentId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -160,10 +157,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -200,10 +196,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -250,16 +245,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -315,10 +305,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -362,10 +351,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -408,10 +396,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -459,19 +446,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/patchJobs';
@@ -530,19 +510,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/oslogin/v1.dart b/generated/googleapis/lib/oslogin/v1.dart
index 70f2ffc..3a30eb8 100644
--- a/generated/googleapis/lib/oslogin/v1.dart
+++ b/generated/googleapis/lib/oslogin/v1.dart
@@ -99,16 +99,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if (systemId != null) {
-      _queryParams['systemId'] = [systemId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projectId != null) 'projectId': [projectId],
+      if (systemId != null) 'systemId': [systemId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -158,13 +153,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projectId != null) 'projectId': [projectId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -213,10 +205,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -260,10 +251,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -301,10 +291,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -354,13 +343,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/pagespeedonline/v5.dart b/generated/googleapis/lib/pagespeedonline/v5.dart
index df2d19e..53c5a29 100644
--- a/generated/googleapis/lib/pagespeedonline/v5.dart
+++ b/generated/googleapis/lib/pagespeedonline/v5.dart
@@ -114,32 +114,19 @@
     core.String utmSource,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (url == null) {
       throw core.ArgumentError('Parameter url is required.');
     }
-    _queryParams['url'] = [url];
-    if (captchaToken != null) {
-      _queryParams['captchaToken'] = [captchaToken];
-    }
-    if (category != null) {
-      _queryParams['category'] = category;
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (strategy != null) {
-      _queryParams['strategy'] = [strategy];
-    }
-    if (utmCampaign != null) {
-      _queryParams['utm_campaign'] = [utmCampaign];
-    }
-    if (utmSource != null) {
-      _queryParams['utm_source'] = [utmSource];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'url': [url],
+      if (captchaToken != null) 'captchaToken': [captchaToken],
+      if (category != null) 'category': category,
+      if (locale != null) 'locale': [locale],
+      if (strategy != null) 'strategy': [strategy],
+      if (utmCampaign != null) 'utm_campaign': [utmCampaign],
+      if (utmSource != null) 'utm_source': [utmSource],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'pagespeedonline/v5/runPagespeed';
 
diff --git a/generated/googleapis/lib/people/v1.dart b/generated/googleapis/lib/people/v1.dart
index a8d7ccc..b04ff92 100644
--- a/generated/googleapis/lib/people/v1.dart
+++ b/generated/googleapis/lib/people/v1.dart
@@ -144,19 +144,12 @@
     core.List<core.String> resourceNames,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (groupFields != null) {
-      _queryParams['groupFields'] = [groupFields];
-    }
-    if (maxMembers != null) {
-      _queryParams['maxMembers'] = ['${maxMembers}'];
-    }
-    if (resourceNames != null) {
-      _queryParams['resourceNames'] = resourceNames;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (groupFields != null) 'groupFields': [groupFields],
+      if (maxMembers != null) 'maxMembers': ['${maxMembers}'],
+      if (resourceNames != null) 'resourceNames': resourceNames,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/contactGroups:batchGet';
 
@@ -191,10 +184,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/contactGroups';
 
@@ -238,13 +230,10 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (deleteContacts != null) {
-      _queryParams['deleteContacts'] = ['${deleteContacts}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (deleteContacts != null) 'deleteContacts': ['${deleteContacts}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$resourceName');
 
@@ -291,16 +280,11 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (groupFields != null) {
-      _queryParams['groupFields'] = [groupFields];
-    }
-    if (maxMembers != null) {
-      _queryParams['maxMembers'] = ['${maxMembers}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (groupFields != null) 'groupFields': [groupFields],
+      if (maxMembers != null) 'maxMembers': ['${maxMembers}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$resourceName');
 
@@ -353,22 +337,13 @@
     core.String syncToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (groupFields != null) {
-      _queryParams['groupFields'] = [groupFields];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (groupFields != null) 'groupFields': [groupFields],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/contactGroups';
 
@@ -413,10 +388,9 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$resourceName');
 
@@ -471,10 +445,9 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resourceName') +
@@ -527,10 +500,9 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resourceName') +
@@ -595,25 +567,14 @@
     core.String syncToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readMask != null) {
-      _queryParams['readMask'] = [readMask];
-    }
-    if (requestSyncToken != null) {
-      _queryParams['requestSyncToken'] = ['${requestSyncToken}'];
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readMask != null) 'readMask': [readMask],
+      if (requestSyncToken != null) 'requestSyncToken': ['${requestSyncToken}'],
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/otherContacts';
 
@@ -676,16 +637,11 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (personFields != null) {
-      _queryParams['personFields'] = [personFields];
-    }
-    if (sources != null) {
-      _queryParams['sources'] = sources;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (personFields != null) 'personFields': [personFields],
+      if (sources != null) 'sources': sources,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/people:createContact';
 
@@ -724,10 +680,9 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resourceName') +
@@ -781,16 +736,11 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (personFields != null) {
-      _queryParams['personFields'] = [personFields];
-    }
-    if (sources != null) {
-      _queryParams['sources'] = sources;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (personFields != null) 'personFields': [personFields],
+      if (sources != null) 'sources': sources,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resourceName') +
@@ -856,19 +806,13 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (personFields != null) {
-      _queryParams['personFields'] = [personFields];
-    }
-    if (requestMask_includeField != null) {
-      _queryParams['requestMask.includeField'] = [requestMask_includeField];
-    }
-    if (sources != null) {
-      _queryParams['sources'] = sources;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (personFields != null) 'personFields': [personFields],
+      if (requestMask_includeField != null)
+        'requestMask.includeField': [requestMask_includeField],
+      if (sources != null) 'sources': sources,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$resourceName');
 
@@ -931,22 +875,14 @@
     core.List<core.String> sources,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (personFields != null) {
-      _queryParams['personFields'] = [personFields];
-    }
-    if (requestMask_includeField != null) {
-      _queryParams['requestMask.includeField'] = [requestMask_includeField];
-    }
-    if (resourceNames != null) {
-      _queryParams['resourceNames'] = resourceNames;
-    }
-    if (sources != null) {
-      _queryParams['sources'] = sources;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (personFields != null) 'personFields': [personFields],
+      if (requestMask_includeField != null)
+        'requestMask.includeField': [requestMask_includeField],
+      if (resourceNames != null) 'resourceNames': resourceNames,
+      if (sources != null) 'sources': sources,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/people:batchGet';
 
@@ -1018,31 +954,16 @@
     core.String syncToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (mergeSources != null) {
-      _queryParams['mergeSources'] = mergeSources;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readMask != null) {
-      _queryParams['readMask'] = [readMask];
-    }
-    if (requestSyncToken != null) {
-      _queryParams['requestSyncToken'] = ['${requestSyncToken}'];
-    }
-    if (sources != null) {
-      _queryParams['sources'] = sources;
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (mergeSources != null) 'mergeSources': mergeSources,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readMask != null) 'readMask': [readMask],
+      if (requestSyncToken != null) 'requestSyncToken': ['${requestSyncToken}'],
+      if (sources != null) 'sources': sources,
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/people:listDirectoryPeople';
 
@@ -1106,28 +1027,15 @@
     core.List<core.String> sources,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (mergeSources != null) {
-      _queryParams['mergeSources'] = mergeSources;
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (readMask != null) {
-      _queryParams['readMask'] = [readMask];
-    }
-    if (sources != null) {
-      _queryParams['sources'] = sources;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (mergeSources != null) 'mergeSources': mergeSources,
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if (readMask != null) 'readMask': [readMask],
+      if (sources != null) 'sources': sources,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/people:searchDirectoryPeople';
 
@@ -1210,19 +1118,13 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (personFields != null) {
-      _queryParams['personFields'] = [personFields];
-    }
-    if (sources != null) {
-      _queryParams['sources'] = sources;
-    }
-    if (updatePersonFields != null) {
-      _queryParams['updatePersonFields'] = [updatePersonFields];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (personFields != null) 'personFields': [personFields],
+      if (sources != null) 'sources': sources,
+      if (updatePersonFields != null)
+        'updatePersonFields': [updatePersonFields],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resourceName') +
@@ -1266,10 +1168,9 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resourceName') +
@@ -1381,34 +1282,18 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (personFields != null) {
-      _queryParams['personFields'] = [personFields];
-    }
-    if (requestMask_includeField != null) {
-      _queryParams['requestMask.includeField'] = [requestMask_includeField];
-    }
-    if (requestSyncToken != null) {
-      _queryParams['requestSyncToken'] = ['${requestSyncToken}'];
-    }
-    if (sortOrder != null) {
-      _queryParams['sortOrder'] = [sortOrder];
-    }
-    if (sources != null) {
-      _queryParams['sources'] = sources;
-    }
-    if (syncToken != null) {
-      _queryParams['syncToken'] = [syncToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (personFields != null) 'personFields': [personFields],
+      if (requestMask_includeField != null)
+        'requestMask.includeField': [requestMask_includeField],
+      if (requestSyncToken != null) 'requestSyncToken': ['${requestSyncToken}'],
+      if (sortOrder != null) 'sortOrder': [sortOrder],
+      if (sources != null) 'sources': sources,
+      if (syncToken != null) 'syncToken': [syncToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resourceName') +
diff --git a/generated/googleapis/lib/playablelocations/v3.dart b/generated/googleapis/lib/playablelocations/v3.dart
index 208d687..0c5ba16 100644
--- a/generated/googleapis/lib/playablelocations/v3.dart
+++ b/generated/googleapis/lib/playablelocations/v3.dart
@@ -81,10 +81,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v3:logImpressions';
 
@@ -124,10 +123,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v3:logPlayerReports';
 
@@ -169,10 +167,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v3:samplePlayableLocations';
 
diff --git a/generated/googleapis/lib/playcustomapp/v1.dart b/generated/googleapis/lib/playcustomapp/v1.dart
index 4147797..8f7375a 100644
--- a/generated/googleapis/lib/playcustomapp/v1.dart
+++ b/generated/googleapis/lib/playcustomapp/v1.dart
@@ -114,10 +114,9 @@
     if (account == null) {
       throw core.ArgumentError('Parameter account is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
diff --git a/generated/googleapis/lib/policytroubleshooter/v1.dart b/generated/googleapis/lib/policytroubleshooter/v1.dart
index eaf8e87..1854548 100644
--- a/generated/googleapis/lib/policytroubleshooter/v1.dart
+++ b/generated/googleapis/lib/policytroubleshooter/v1.dart
@@ -81,10 +81,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/iam:troubleshoot';
 
diff --git a/generated/googleapis/lib/poly/v1.dart b/generated/googleapis/lib/poly/v1.dart
index 0eff931..5723203 100644
--- a/generated/googleapis/lib/poly/v1.dart
+++ b/generated/googleapis/lib/poly/v1.dart
@@ -87,10 +87,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -164,34 +163,17 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (category != null) {
-      _queryParams['category'] = [category];
-    }
-    if (curated != null) {
-      _queryParams['curated'] = ['${curated}'];
-    }
-    if (format != null) {
-      _queryParams['format'] = [format];
-    }
-    if (keywords != null) {
-      _queryParams['keywords'] = [keywords];
-    }
-    if (maxComplexity != null) {
-      _queryParams['maxComplexity'] = [maxComplexity];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (category != null) 'category': [category],
+      if (curated != null) 'curated': ['${curated}'],
+      if (format != null) 'format': [format],
+      if (keywords != null) 'keywords': [keywords],
+      if (maxComplexity != null) 'maxComplexity': [maxComplexity],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/assets';
 
@@ -277,25 +259,14 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (format != null) {
-      _queryParams['format'] = [format];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (visibility != null) {
-      _queryParams['visibility'] = [visibility];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (format != null) 'format': [format],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (visibility != null) 'visibility': [visibility],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/assets';
@@ -362,22 +333,13 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (format != null) {
-      _queryParams['format'] = [format];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (format != null) 'format': [format],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/likedassets';
diff --git a/generated/googleapis/lib/pubsub/v1.dart b/generated/googleapis/lib/pubsub/v1.dart
index ca41033..a2c1fc8 100644
--- a/generated/googleapis/lib/pubsub/v1.dart
+++ b/generated/googleapis/lib/pubsub/v1.dart
@@ -130,10 +130,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -181,10 +180,9 @@
     if (snapshot == null) {
       throw core.ArgumentError('Parameter snapshot is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$snapshot');
 
@@ -225,10 +223,9 @@
     if (snapshot == null) {
       throw core.ArgumentError('Parameter snapshot is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$snapshot');
 
@@ -278,15 +275,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -339,16 +332,11 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$project') +
@@ -396,10 +384,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -446,10 +433,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -500,10 +486,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -562,10 +547,9 @@
     if (subscription == null) {
       throw core.ArgumentError('Parameter subscription is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$subscription') +
@@ -624,10 +608,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -672,10 +655,9 @@
     if (subscription == null) {
       throw core.ArgumentError('Parameter subscription is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$subscription');
 
@@ -716,10 +698,9 @@
     if (subscription == null) {
       throw core.ArgumentError('Parameter subscription is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$subscription') +
@@ -759,10 +740,9 @@
     if (subscription == null) {
       throw core.ArgumentError('Parameter subscription is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$subscription');
 
@@ -813,15 +793,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -868,16 +844,11 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$project') +
@@ -927,10 +898,9 @@
     if (subscription == null) {
       throw core.ArgumentError('Parameter subscription is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$subscription') +
@@ -980,10 +950,9 @@
     if (subscription == null) {
       throw core.ArgumentError('Parameter subscription is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$subscription') +
@@ -1035,10 +1004,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1085,10 +1053,9 @@
     if (subscription == null) {
       throw core.ArgumentError('Parameter subscription is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$subscription') +
@@ -1141,10 +1108,9 @@
     if (subscription == null) {
       throw core.ArgumentError('Parameter subscription is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$subscription') +
@@ -1194,10 +1160,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1248,10 +1213,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1315,10 +1279,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1362,10 +1325,9 @@
     if (topic == null) {
       throw core.ArgumentError('Parameter topic is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$topic');
 
@@ -1402,10 +1364,9 @@
     if (topic == null) {
       throw core.ArgumentError('Parameter topic is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$topic');
 
@@ -1455,15 +1416,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1510,16 +1467,11 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$project') + '/topics';
@@ -1569,10 +1521,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1617,10 +1568,9 @@
     if (topic == null) {
       throw core.ArgumentError('Parameter topic is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$topic') + ':publish';
@@ -1669,10 +1619,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1723,10 +1672,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1788,16 +1736,11 @@
     if (topic == null) {
       throw core.ArgumentError('Parameter topic is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$topic') + '/snapshots';
@@ -1852,16 +1795,11 @@
     if (topic == null) {
       throw core.ArgumentError('Parameter topic is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$topic') +
diff --git a/generated/googleapis/lib/pubsublite/v1.dart b/generated/googleapis/lib/pubsublite/v1.dart
index be5b247..d192129 100644
--- a/generated/googleapis/lib/pubsublite/v1.dart
+++ b/generated/googleapis/lib/pubsublite/v1.dart
@@ -138,13 +138,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (subscriptionId != null) {
-      _queryParams['subscriptionId'] = [subscriptionId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (subscriptionId != null) 'subscriptionId': [subscriptionId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -185,10 +182,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -226,10 +222,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -278,16 +273,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -337,13 +327,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -402,13 +389,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (topicId != null) {
-      _queryParams['topicId'] = [topicId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (topicId != null) 'topicId': [topicId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -448,10 +432,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -488,10 +471,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -528,10 +510,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -582,16 +563,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -640,13 +616,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -702,16 +675,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/admin/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -809,16 +777,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/cursor/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -903,10 +866,9 @@
     if (topic == null) {
       throw core.ArgumentError('Parameter topic is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/topicStats/' +
         commons.Escaper.ecapeVariableReserved('$topic') +
@@ -953,10 +915,9 @@
     if (topic == null) {
       throw core.ArgumentError('Parameter topic is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/topicStats/' +
         commons.Escaper.ecapeVariableReserved('$topic') +
diff --git a/generated/googleapis/lib/realtimebidding/v1.dart b/generated/googleapis/lib/realtimebidding/v1.dart
index 7e69e5d..c0a46e0 100644
--- a/generated/googleapis/lib/realtimebidding/v1.dart
+++ b/generated/googleapis/lib/realtimebidding/v1.dart
@@ -151,22 +151,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/creatives';
@@ -217,10 +208,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -273,10 +263,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':activate';
@@ -322,10 +311,9 @@
     if (pretargetingConfig == null) {
       throw core.ArgumentError('Parameter pretargetingConfig is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$pretargetingConfig') +
@@ -372,10 +360,9 @@
     if (pretargetingConfig == null) {
       throw core.ArgumentError('Parameter pretargetingConfig is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$pretargetingConfig') +
@@ -422,10 +409,9 @@
     if (pretargetingConfig == null) {
       throw core.ArgumentError('Parameter pretargetingConfig is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$pretargetingConfig') +
@@ -476,10 +462,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -520,10 +505,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -560,10 +544,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -611,16 +594,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -669,13 +647,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -720,10 +695,9 @@
     if (pretargetingConfig == null) {
       throw core.ArgumentError('Parameter pretargetingConfig is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$pretargetingConfig') +
@@ -770,10 +744,9 @@
     if (pretargetingConfig == null) {
       throw core.ArgumentError('Parameter pretargetingConfig is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$pretargetingConfig') +
@@ -820,10 +793,9 @@
     if (pretargetingConfig == null) {
       throw core.ArgumentError('Parameter pretargetingConfig is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$pretargetingConfig') +
@@ -869,10 +841,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':suspend';
@@ -930,10 +901,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -988,10 +958,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/creatives';
@@ -1042,13 +1011,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1126,22 +1092,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/creatives';
@@ -1191,13 +1148,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1247,10 +1201,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':close';
@@ -1298,10 +1251,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/userLists';
@@ -1340,10 +1292,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1389,10 +1340,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1443,16 +1393,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/userLists';
@@ -1497,10 +1442,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':open';
@@ -1550,10 +1494,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/recommender/v1.dart b/generated/googleapis/lib/recommender/v1.dart
index 3dc0e38..c3c5b2f 100644
--- a/generated/googleapis/lib/recommender/v1.dart
+++ b/generated/googleapis/lib/recommender/v1.dart
@@ -144,10 +144,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -209,19 +208,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/insights';
@@ -271,10 +263,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -338,10 +329,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -404,19 +394,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -469,10 +452,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':markClaimed';
@@ -525,10 +507,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':markFailed';
@@ -581,10 +562,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -665,10 +645,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -730,19 +709,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/insights';
@@ -792,10 +764,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -857,10 +828,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -923,19 +893,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -988,10 +951,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':markClaimed';
@@ -1044,10 +1006,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':markFailed';
@@ -1100,10 +1061,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1186,10 +1146,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1251,19 +1210,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/insights';
@@ -1313,10 +1265,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1379,10 +1330,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1445,19 +1395,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1510,10 +1453,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':markClaimed';
@@ -1566,10 +1508,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':markFailed';
@@ -1622,10 +1563,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1706,10 +1646,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1771,19 +1710,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/insights';
@@ -1833,10 +1765,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1898,10 +1829,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1964,19 +1894,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2029,10 +1952,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':markClaimed';
@@ -2085,10 +2007,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':markFailed';
@@ -2141,10 +2062,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
diff --git a/generated/googleapis/lib/redis/v1.dart b/generated/googleapis/lib/redis/v1.dart
index 443bf16..9cf95ac 100644
--- a/generated/googleapis/lib/redis/v1.dart
+++ b/generated/googleapis/lib/redis/v1.dart
@@ -100,10 +100,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -148,19 +147,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -228,13 +220,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (instanceId != null) {
-      _queryParams['instanceId'] = [instanceId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (instanceId != null) 'instanceId': [instanceId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -277,10 +266,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -328,10 +316,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':export';
@@ -378,10 +365,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':failover';
@@ -422,10 +408,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -467,10 +452,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/authString';
@@ -521,10 +505,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':import';
@@ -581,16 +564,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -651,13 +629,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -703,10 +678,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':upgrade';
@@ -761,10 +735,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -806,10 +779,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -849,10 +821,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -906,19 +877,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/remotebuildexecution/v2.dart b/generated/googleapis/lib/remotebuildexecution/v2.dart
index 1f5d8f5..e1443ae 100644
--- a/generated/googleapis/lib/remotebuildexecution/v2.dart
+++ b/generated/googleapis/lib/remotebuildexecution/v2.dart
@@ -128,19 +128,12 @@
     if (sizeBytes == null) {
       throw core.ArgumentError('Parameter sizeBytes is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (inlineOutputFiles != null) {
-      _queryParams['inlineOutputFiles'] = inlineOutputFiles;
-    }
-    if (inlineStderr != null) {
-      _queryParams['inlineStderr'] = ['${inlineStderr}'];
-    }
-    if (inlineStdout != null) {
-      _queryParams['inlineStdout'] = ['${inlineStdout}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (inlineOutputFiles != null) 'inlineOutputFiles': inlineOutputFiles,
+      if (inlineStderr != null) 'inlineStderr': ['${inlineStderr}'],
+      if (inlineStdout != null) 'inlineStdout': ['${inlineStdout}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$instanceName') +
@@ -222,15 +215,11 @@
     if (sizeBytes == null) {
       throw core.ArgumentError('Parameter sizeBytes is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (resultsCachePolicy_priority != null) {
-      _queryParams['resultsCachePolicy.priority'] = [
-        '${resultsCachePolicy_priority}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (resultsCachePolicy_priority != null)
+        'resultsCachePolicy.priority': ['${resultsCachePolicy_priority}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$instanceName') +
@@ -330,10 +319,9 @@
     if (instanceName == null) {
       throw core.ArgumentError('Parameter instanceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$instanceName') +
@@ -398,10 +386,9 @@
     if (instanceName == null) {
       throw core.ArgumentError('Parameter instanceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$instanceName') +
@@ -462,10 +449,9 @@
     if (instanceName == null) {
       throw core.ArgumentError('Parameter instanceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$instanceName') +
@@ -519,10 +505,9 @@
     if (instanceName == null) {
       throw core.ArgumentError('Parameter instanceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$instanceName') +
@@ -604,16 +589,11 @@
     if (sizeBytes == null) {
       throw core.ArgumentError('Parameter sizeBytes is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$instanceName') +
@@ -674,10 +654,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -734,10 +713,9 @@
     if (instanceName == null) {
       throw core.ArgumentError('Parameter instanceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$instanceName') +
diff --git a/generated/googleapis/lib/reseller/v1.dart b/generated/googleapis/lib/reseller/v1.dart
index d4a5ba5..d893580 100644
--- a/generated/googleapis/lib/reseller/v1.dart
+++ b/generated/googleapis/lib/reseller/v1.dart
@@ -96,10 +96,9 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId');
@@ -142,13 +141,10 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerAuthToken != null) {
-      _queryParams['customerAuthToken'] = [customerAuthToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerAuthToken != null) 'customerAuthToken': [customerAuthToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'apps/reseller/v1/customers';
 
@@ -192,10 +188,9 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId');
@@ -240,10 +235,9 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId');
@@ -280,10 +274,9 @@
   async.Future<ResellernotifyGetwatchdetailsResponse> getwatchdetails({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'apps/reseller/v1/resellernotify/getwatchdetails';
 
@@ -317,13 +310,11 @@
     core.String serviceAccountEmailAddress,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (serviceAccountEmailAddress != null) {
-      _queryParams['serviceAccountEmailAddress'] = [serviceAccountEmailAddress];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (serviceAccountEmailAddress != null)
+        'serviceAccountEmailAddress': [serviceAccountEmailAddress],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'apps/reseller/v1/resellernotify/register';
 
@@ -357,13 +348,11 @@
     core.String serviceAccountEmailAddress,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (serviceAccountEmailAddress != null) {
-      _queryParams['serviceAccountEmailAddress'] = [serviceAccountEmailAddress];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (serviceAccountEmailAddress != null)
+        'serviceAccountEmailAddress': [serviceAccountEmailAddress],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'apps/reseller/v1/resellernotify/unregister';
 
@@ -418,10 +407,9 @@
     if (subscriptionId == null) {
       throw core.ArgumentError('Parameter subscriptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -482,10 +470,9 @@
     if (subscriptionId == null) {
       throw core.ArgumentError('Parameter subscriptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -546,10 +533,9 @@
     if (subscriptionId == null) {
       throw core.ArgumentError('Parameter subscriptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -608,10 +594,9 @@
     if (subscriptionId == null) {
       throw core.ArgumentError('Parameter subscriptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -676,14 +661,13 @@
     if (subscriptionId == null) {
       throw core.ArgumentError('Parameter subscriptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (deletionType == null) {
       throw core.ArgumentError('Parameter deletionType is required.');
     }
-    _queryParams['deletionType'] = [deletionType];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'deletionType': [deletionType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -734,10 +718,9 @@
     if (subscriptionId == null) {
       throw core.ArgumentError('Parameter subscriptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -792,13 +775,10 @@
     if (customerId == null) {
       throw core.ArgumentError('Parameter customerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerAuthToken != null) {
-      _queryParams['customerAuthToken'] = [customerAuthToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerAuthToken != null) 'customerAuthToken': [customerAuthToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -866,25 +846,15 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerAuthToken != null) {
-      _queryParams['customerAuthToken'] = [customerAuthToken];
-    }
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (customerNamePrefix != null) {
-      _queryParams['customerNamePrefix'] = [customerNamePrefix];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerAuthToken != null) 'customerAuthToken': [customerAuthToken],
+      if (customerId != null) 'customerId': [customerId],
+      if (customerNamePrefix != null)
+        'customerNamePrefix': [customerNamePrefix],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'apps/reseller/v1/subscriptions';
 
@@ -934,10 +904,9 @@
     if (subscriptionId == null) {
       throw core.ArgumentError('Parameter subscriptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId') +
@@ -990,10 +959,9 @@
     if (subscriptionId == null) {
       throw core.ArgumentError('Parameter subscriptionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apps/reseller/v1/customers/' +
         commons.Escaper.ecapeVariable('$customerId') +
diff --git a/generated/googleapis/lib/retail/v2.dart b/generated/googleapis/lib/retail/v2.dart
index e9a3f99..eeff117 100644
--- a/generated/googleapis/lib/retail/v2.dart
+++ b/generated/googleapis/lib/retail/v2.dart
@@ -142,16 +142,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/catalogs';
@@ -202,13 +197,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -270,10 +262,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -333,13 +324,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (productId != null) {
-      _queryParams['productId'] = [productId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (productId != null) 'productId': [productId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$parent') + '/products';
@@ -386,10 +374,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -431,10 +418,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -484,10 +470,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -547,16 +532,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (allowMissing != null) {
-      _queryParams['allowMissing'] = ['${allowMissing}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (allowMissing != null) 'allowMissing': ['${allowMissing}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -605,10 +585,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -664,19 +643,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -747,10 +719,9 @@
     if (placement == null) {
       throw core.ArgumentError('Parameter placement is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$placement') +
@@ -818,19 +789,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ets != null) {
-      _queryParams['ets'] = [ets];
-    }
-    if (uri != null) {
-      _queryParams['uri'] = [uri];
-    }
-    if (userEvent != null) {
-      _queryParams['userEvent'] = [userEvent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ets != null) 'ets': [ets],
+      if (uri != null) 'uri': [uri],
+      if (userEvent != null) 'userEvent': [userEvent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -882,10 +846,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -937,10 +900,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -994,10 +956,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1044,10 +1005,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1098,10 +1058,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1156,19 +1115,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
diff --git a/generated/googleapis/lib/run/v1.dart b/generated/googleapis/lib/run/v1.dart
index 8da7b60..456a362 100644
--- a/generated/googleapis/lib/run/v1.dart
+++ b/generated/googleapis/lib/run/v1.dart
@@ -127,16 +127,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/domains.cloudrun.com/v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -183,10 +178,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$name');
@@ -252,31 +246,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -329,10 +309,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/domains.cloudrun.com/v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -385,19 +364,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (apiVersion != null) {
-      _queryParams['apiVersion'] = [apiVersion];
-    }
-    if (kind != null) {
-      _queryParams['kind'] = [kind];
-    }
-    if (propagationPolicy != null) {
-      _queryParams['propagationPolicy'] = [propagationPolicy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (apiVersion != null) 'apiVersion': [apiVersion],
+      if (kind != null) 'kind': [kind],
+      if (propagationPolicy != null) 'propagationPolicy': [propagationPolicy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/domains.cloudrun.com/v1/' +
         commons.Escaper.ecapeVariableReserved('$name');
@@ -435,10 +407,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/domains.cloudrun.com/v1/' +
         commons.Escaper.ecapeVariableReserved('$name');
@@ -504,31 +475,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/domains.cloudrun.com/v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -587,19 +544,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (apiVersion != null) {
-      _queryParams['apiVersion'] = [apiVersion];
-    }
-    if (kind != null) {
-      _queryParams['kind'] = [kind];
-    }
-    if (propagationPolicy != null) {
-      _queryParams['propagationPolicy'] = [propagationPolicy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (apiVersion != null) 'apiVersion': [apiVersion],
+      if (kind != null) 'kind': [kind],
+      if (propagationPolicy != null) 'propagationPolicy': [propagationPolicy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$name');
@@ -637,10 +587,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$name');
@@ -705,31 +654,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -775,10 +710,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$name');
@@ -842,31 +776,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -917,10 +837,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -975,19 +894,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (apiVersion != null) {
-      _queryParams['apiVersion'] = [apiVersion];
-    }
-    if (kind != null) {
-      _queryParams['kind'] = [kind];
-    }
-    if (propagationPolicy != null) {
-      _queryParams['propagationPolicy'] = [propagationPolicy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (apiVersion != null) 'apiVersion': [apiVersion],
+      if (kind != null) 'kind': [kind],
+      if (propagationPolicy != null) 'propagationPolicy': [propagationPolicy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$name');
@@ -1025,10 +937,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$name');
@@ -1093,31 +1004,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1167,10 +1064,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'apis/serving.knative.dev/v1/' +
         commons.Escaper.ecapeVariableReserved('$name');
@@ -1233,16 +1129,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1309,19 +1200,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -1373,16 +1257,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1430,10 +1309,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1498,31 +1376,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1575,10 +1439,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1632,19 +1495,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (apiVersion != null) {
-      _queryParams['apiVersion'] = [apiVersion];
-    }
-    if (kind != null) {
-      _queryParams['kind'] = [kind];
-    }
-    if (propagationPolicy != null) {
-      _queryParams['propagationPolicy'] = [propagationPolicy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (apiVersion != null) 'apiVersion': [apiVersion],
+      if (kind != null) 'kind': [kind],
+      if (propagationPolicy != null) 'propagationPolicy': [propagationPolicy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1682,10 +1538,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1750,31 +1605,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1834,19 +1675,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (apiVersion != null) {
-      _queryParams['apiVersion'] = [apiVersion];
-    }
-    if (kind != null) {
-      _queryParams['kind'] = [kind];
-    }
-    if (propagationPolicy != null) {
-      _queryParams['propagationPolicy'] = [propagationPolicy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (apiVersion != null) 'apiVersion': [apiVersion],
+      if (kind != null) 'kind': [kind],
+      if (propagationPolicy != null) 'propagationPolicy': [propagationPolicy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1884,10 +1718,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1951,31 +1784,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/revisions';
@@ -2022,10 +1841,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2088,31 +1906,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/routes';
@@ -2163,10 +1967,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/services';
@@ -2221,19 +2024,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (apiVersion != null) {
-      _queryParams['apiVersion'] = [apiVersion];
-    }
-    if (kind != null) {
-      _queryParams['kind'] = [kind];
-    }
-    if (propagationPolicy != null) {
-      _queryParams['propagationPolicy'] = [propagationPolicy];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (apiVersion != null) 'apiVersion': [apiVersion],
+      if (kind != null) 'kind': [kind],
+      if (propagationPolicy != null) 'propagationPolicy': [propagationPolicy],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2271,10 +2067,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2325,15 +2120,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2399,31 +2190,17 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (continue_ != null) {
-      _queryParams['continue'] = [continue_];
-    }
-    if (fieldSelector != null) {
-      _queryParams['fieldSelector'] = [fieldSelector];
-    }
-    if (includeUninitialized != null) {
-      _queryParams['includeUninitialized'] = ['${includeUninitialized}'];
-    }
-    if (labelSelector != null) {
-      _queryParams['labelSelector'] = [labelSelector];
-    }
-    if (limit != null) {
-      _queryParams['limit'] = ['${limit}'];
-    }
-    if (resourceVersion != null) {
-      _queryParams['resourceVersion'] = [resourceVersion];
-    }
-    if (watch != null) {
-      _queryParams['watch'] = ['${watch}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (continue_ != null) 'continue': [continue_],
+      if (fieldSelector != null) 'fieldSelector': [fieldSelector],
+      if (includeUninitialized != null)
+        'includeUninitialized': ['${includeUninitialized}'],
+      if (labelSelector != null) 'labelSelector': [labelSelector],
+      if (limit != null) 'limit': ['${limit}'],
+      if (resourceVersion != null) 'resourceVersion': [resourceVersion],
+      if (watch != null) 'watch': ['${watch}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/services';
@@ -2473,10 +2250,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2523,10 +2299,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2575,10 +2350,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
diff --git a/generated/googleapis/lib/runtimeconfig/v1.dart b/generated/googleapis/lib/runtimeconfig/v1.dart
index c3ce236..46f7c12 100644
--- a/generated/googleapis/lib/runtimeconfig/v1.dart
+++ b/generated/googleapis/lib/runtimeconfig/v1.dart
@@ -109,10 +109,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -154,10 +153,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -211,19 +209,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/safebrowsing/v4.dart b/generated/googleapis/lib/safebrowsing/v4.dart
index d491160..bd61b33 100644
--- a/generated/googleapis/lib/safebrowsing/v4.dart
+++ b/generated/googleapis/lib/safebrowsing/v4.dart
@@ -107,16 +107,11 @@
     if (encodedRequest == null) {
       throw core.ArgumentError('Parameter encodedRequest is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientId != null) {
-      _queryParams['clientId'] = [clientId];
-    }
-    if (clientVersion != null) {
-      _queryParams['clientVersion'] = [clientVersion];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientId != null) 'clientId': [clientId],
+      if (clientVersion != null) 'clientVersion': [clientVersion],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/encodedFullHashes/' +
         commons.Escaper.ecapeVariable('$encodedRequest');
@@ -165,16 +160,11 @@
     if (encodedRequest == null) {
       throw core.ArgumentError('Parameter encodedRequest is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (clientId != null) {
-      _queryParams['clientId'] = [clientId];
-    }
-    if (clientVersion != null) {
-      _queryParams['clientVersion'] = [clientVersion];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (clientId != null) 'clientId': [clientId],
+      if (clientVersion != null) 'clientVersion': [clientVersion],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v4/encodedUpdates/' + commons.Escaper.ecapeVariable('$encodedRequest');
@@ -216,10 +206,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v4/fullHashes:find';
 
@@ -263,10 +252,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v4/threatHits';
 
@@ -312,10 +300,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v4/threatListUpdates:fetch';
 
@@ -352,10 +339,9 @@
   async.Future<GoogleSecuritySafebrowsingV4ListThreatListsResponse> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v4/threatLists';
 
@@ -396,10 +382,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v4/threatMatches:find';
 
diff --git a/generated/googleapis/lib/script/v1.dart b/generated/googleapis/lib/script/v1.dart
index 32fc2a5..d4d9f5c 100644
--- a/generated/googleapis/lib/script/v1.dart
+++ b/generated/googleapis/lib/script/v1.dart
@@ -195,52 +195,30 @@
     core.List<core.String> userProcessFilter_userAccessLevels,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (userProcessFilter_deploymentId != null) {
-      _queryParams['userProcessFilter.deploymentId'] = [
-        userProcessFilter_deploymentId
-      ];
-    }
-    if (userProcessFilter_endTime != null) {
-      _queryParams['userProcessFilter.endTime'] = [userProcessFilter_endTime];
-    }
-    if (userProcessFilter_functionName != null) {
-      _queryParams['userProcessFilter.functionName'] = [
-        userProcessFilter_functionName
-      ];
-    }
-    if (userProcessFilter_projectName != null) {
-      _queryParams['userProcessFilter.projectName'] = [
-        userProcessFilter_projectName
-      ];
-    }
-    if (userProcessFilter_scriptId != null) {
-      _queryParams['userProcessFilter.scriptId'] = [userProcessFilter_scriptId];
-    }
-    if (userProcessFilter_startTime != null) {
-      _queryParams['userProcessFilter.startTime'] = [
-        userProcessFilter_startTime
-      ];
-    }
-    if (userProcessFilter_statuses != null) {
-      _queryParams['userProcessFilter.statuses'] = userProcessFilter_statuses;
-    }
-    if (userProcessFilter_types != null) {
-      _queryParams['userProcessFilter.types'] = userProcessFilter_types;
-    }
-    if (userProcessFilter_userAccessLevels != null) {
-      _queryParams['userProcessFilter.userAccessLevels'] =
-          userProcessFilter_userAccessLevels;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (userProcessFilter_deploymentId != null)
+        'userProcessFilter.deploymentId': [userProcessFilter_deploymentId],
+      if (userProcessFilter_endTime != null)
+        'userProcessFilter.endTime': [userProcessFilter_endTime],
+      if (userProcessFilter_functionName != null)
+        'userProcessFilter.functionName': [userProcessFilter_functionName],
+      if (userProcessFilter_projectName != null)
+        'userProcessFilter.projectName': [userProcessFilter_projectName],
+      if (userProcessFilter_scriptId != null)
+        'userProcessFilter.scriptId': [userProcessFilter_scriptId],
+      if (userProcessFilter_startTime != null)
+        'userProcessFilter.startTime': [userProcessFilter_startTime],
+      if (userProcessFilter_statuses != null)
+        'userProcessFilter.statuses': userProcessFilter_statuses,
+      if (userProcessFilter_types != null)
+        'userProcessFilter.types': userProcessFilter_types,
+      if (userProcessFilter_userAccessLevels != null)
+        'userProcessFilter.userAccessLevels':
+            userProcessFilter_userAccessLevels,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/processes';
 
@@ -314,50 +292,27 @@
     core.List<core.String> scriptProcessFilter_userAccessLevels,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (scriptId != null) {
-      _queryParams['scriptId'] = [scriptId];
-    }
-    if (scriptProcessFilter_deploymentId != null) {
-      _queryParams['scriptProcessFilter.deploymentId'] = [
-        scriptProcessFilter_deploymentId
-      ];
-    }
-    if (scriptProcessFilter_endTime != null) {
-      _queryParams['scriptProcessFilter.endTime'] = [
-        scriptProcessFilter_endTime
-      ];
-    }
-    if (scriptProcessFilter_functionName != null) {
-      _queryParams['scriptProcessFilter.functionName'] = [
-        scriptProcessFilter_functionName
-      ];
-    }
-    if (scriptProcessFilter_startTime != null) {
-      _queryParams['scriptProcessFilter.startTime'] = [
-        scriptProcessFilter_startTime
-      ];
-    }
-    if (scriptProcessFilter_statuses != null) {
-      _queryParams['scriptProcessFilter.statuses'] =
-          scriptProcessFilter_statuses;
-    }
-    if (scriptProcessFilter_types != null) {
-      _queryParams['scriptProcessFilter.types'] = scriptProcessFilter_types;
-    }
-    if (scriptProcessFilter_userAccessLevels != null) {
-      _queryParams['scriptProcessFilter.userAccessLevels'] =
-          scriptProcessFilter_userAccessLevels;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (scriptId != null) 'scriptId': [scriptId],
+      if (scriptProcessFilter_deploymentId != null)
+        'scriptProcessFilter.deploymentId': [scriptProcessFilter_deploymentId],
+      if (scriptProcessFilter_endTime != null)
+        'scriptProcessFilter.endTime': [scriptProcessFilter_endTime],
+      if (scriptProcessFilter_functionName != null)
+        'scriptProcessFilter.functionName': [scriptProcessFilter_functionName],
+      if (scriptProcessFilter_startTime != null)
+        'scriptProcessFilter.startTime': [scriptProcessFilter_startTime],
+      if (scriptProcessFilter_statuses != null)
+        'scriptProcessFilter.statuses': scriptProcessFilter_statuses,
+      if (scriptProcessFilter_types != null)
+        'scriptProcessFilter.types': scriptProcessFilter_types,
+      if (scriptProcessFilter_userAccessLevels != null)
+        'scriptProcessFilter.userAccessLevels':
+            scriptProcessFilter_userAccessLevels,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/processes:listScriptProcesses';
 
@@ -403,10 +358,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/projects';
 
@@ -442,10 +396,9 @@
     if (scriptId == null) {
       throw core.ArgumentError('Parameter scriptId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' + commons.Escaper.ecapeVariable('$scriptId');
 
@@ -485,13 +438,10 @@
     if (scriptId == null) {
       throw core.ArgumentError('Parameter scriptId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (versionNumber != null) {
-      _queryParams['versionNumber'] = ['${versionNumber}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (versionNumber != null) 'versionNumber': ['${versionNumber}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -542,16 +492,13 @@
     if (scriptId == null) {
       throw core.ArgumentError('Parameter scriptId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (metricsFilter_deploymentId != null) {
-      _queryParams['metricsFilter.deploymentId'] = [metricsFilter_deploymentId];
-    }
-    if (metricsGranularity != null) {
-      _queryParams['metricsGranularity'] = [metricsGranularity];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (metricsFilter_deploymentId != null)
+        'metricsFilter.deploymentId': [metricsFilter_deploymentId],
+      if (metricsGranularity != null)
+        'metricsGranularity': [metricsGranularity],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -598,10 +545,9 @@
     if (scriptId == null) {
       throw core.ArgumentError('Parameter scriptId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -651,10 +597,9 @@
     if (scriptId == null) {
       throw core.ArgumentError('Parameter scriptId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -699,10 +644,9 @@
     if (deploymentId == null) {
       throw core.ArgumentError('Parameter deploymentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -746,10 +690,9 @@
     if (deploymentId == null) {
       throw core.ArgumentError('Parameter deploymentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -797,16 +740,11 @@
     if (scriptId == null) {
       throw core.ArgumentError('Parameter scriptId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -855,10 +793,9 @@
     if (deploymentId == null) {
       throw core.ArgumentError('Parameter deploymentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -910,10 +847,9 @@
     if (scriptId == null) {
       throw core.ArgumentError('Parameter scriptId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -957,10 +893,9 @@
     if (versionNumber == null) {
       throw core.ArgumentError('Parameter versionNumber is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -1007,16 +942,11 @@
     if (scriptId == null) {
       throw core.ArgumentError('Parameter scriptId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$scriptId') +
@@ -1078,10 +1008,9 @@
     if (scriptId == null) {
       throw core.ArgumentError('Parameter scriptId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/scripts/' + commons.Escaper.ecapeVariable('$scriptId') + ':run';
diff --git a/generated/googleapis/lib/searchconsole/v1.dart b/generated/googleapis/lib/searchconsole/v1.dart
index 3fe212b..485ef76 100644
--- a/generated/googleapis/lib/searchconsole/v1.dart
+++ b/generated/googleapis/lib/searchconsole/v1.dart
@@ -109,10 +109,9 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'webmasters/v3/sites/' +
         commons.Escaper.ecapeVariable('$siteUrl') +
@@ -163,10 +162,9 @@
     if (feedpath == null) {
       throw core.ArgumentError('Parameter feedpath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'webmasters/v3/sites/' +
         commons.Escaper.ecapeVariable('$siteUrl') +
@@ -212,10 +210,9 @@
     if (feedpath == null) {
       throw core.ArgumentError('Parameter feedpath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'webmasters/v3/sites/' +
         commons.Escaper.ecapeVariable('$siteUrl') +
@@ -261,13 +258,10 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sitemapIndex != null) {
-      _queryParams['sitemapIndex'] = [sitemapIndex];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sitemapIndex != null) 'sitemapIndex': [sitemapIndex],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'webmasters/v3/sites/' +
         commons.Escaper.ecapeVariable('$siteUrl') +
@@ -311,10 +305,9 @@
     if (feedpath == null) {
       throw core.ArgumentError('Parameter feedpath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'webmasters/v3/sites/' +
         commons.Escaper.ecapeVariable('$siteUrl') +
@@ -356,10 +349,9 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'webmasters/v3/sites/' + commons.Escaper.ecapeVariable('$siteUrl');
@@ -394,10 +386,9 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'webmasters/v3/sites/' + commons.Escaper.ecapeVariable('$siteUrl');
@@ -434,10 +425,9 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'webmasters/v3/sites/' + commons.Escaper.ecapeVariable('$siteUrl');
@@ -467,10 +457,9 @@
   async.Future<SitesListResponse> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'webmasters/v3/sites';
 
@@ -521,10 +510,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/urlTestingTools/mobileFriendlyTest:run';
 
diff --git a/generated/googleapis/lib/secretmanager/v1.dart b/generated/googleapis/lib/secretmanager/v1.dart
index 809555c..e6bebde 100644
--- a/generated/googleapis/lib/secretmanager/v1.dart
+++ b/generated/googleapis/lib/secretmanager/v1.dart
@@ -99,10 +99,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -147,19 +146,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -213,10 +205,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -268,13 +259,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (secretId != null) {
-      _queryParams['secretId'] = [secretId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (secretId != null) 'secretId': [secretId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/secrets';
@@ -313,10 +301,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -353,10 +340,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -405,15 +391,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -461,16 +443,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/secrets';
@@ -517,13 +494,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -570,10 +544,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -624,10 +597,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -679,10 +651,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':access';
@@ -730,10 +701,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':destroy';
@@ -781,10 +751,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':disable';
@@ -832,10 +801,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':enable';
@@ -880,10 +848,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -932,16 +899,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/versions';
diff --git a/generated/googleapis/lib/securitycenter/v1.dart b/generated/googleapis/lib/securitycenter/v1.dart
index f288ddb..9b4fd7a 100644
--- a/generated/googleapis/lib/securitycenter/v1.dart
+++ b/generated/googleapis/lib/securitycenter/v1.dart
@@ -117,10 +117,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -253,31 +252,16 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (compareDuration != null) {
-      _queryParams['compareDuration'] = [compareDuration];
-    }
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readTime != null) {
-      _queryParams['readTime'] = [readTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (compareDuration != null) 'compareDuration': [compareDuration],
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readTime != null) 'readTime': [readTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/assets';
@@ -335,16 +319,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (startTime != null) 'startTime': [startTime],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -402,16 +381,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sources';
@@ -473,10 +447,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -604,31 +577,16 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (compareDuration != null) {
-      _queryParams['compareDuration'] = [compareDuration];
-    }
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readTime != null) {
-      _queryParams['readTime'] = [readTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (compareDuration != null) 'compareDuration': [compareDuration],
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readTime != null) 'readTime': [readTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/findings';
@@ -684,13 +642,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -736,10 +691,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':setState';
@@ -798,16 +752,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (startTime != null) 'startTime': [startTime],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -862,10 +811,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -913,13 +861,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -972,10 +917,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1108,31 +1052,16 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (compareDuration != null) {
-      _queryParams['compareDuration'] = [compareDuration];
-    }
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readTime != null) {
-      _queryParams['readTime'] = [readTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (compareDuration != null) 'compareDuration': [compareDuration],
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readTime != null) 'readTime': [readTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/assets';
@@ -1180,10 +1109,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1243,16 +1171,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (startTime != null) 'startTime': [startTime],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1308,13 +1231,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (configId != null) {
-      _queryParams['configId'] = [configId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (configId != null) 'configId': [configId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1356,10 +1276,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1397,10 +1316,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1448,16 +1366,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1512,13 +1425,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1572,10 +1482,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1616,10 +1525,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1658,10 +1566,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1715,19 +1622,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1780,10 +1680,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sources';
@@ -1822,10 +1721,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1868,10 +1766,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1921,16 +1818,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sources';
@@ -1979,13 +1871,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2029,10 +1918,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2078,10 +1966,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2141,13 +2028,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (findingId != null) {
-      _queryParams['findingId'] = [findingId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (findingId != null) 'findingId': [findingId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/findings';
@@ -2202,10 +2086,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2333,31 +2216,16 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (compareDuration != null) {
-      _queryParams['compareDuration'] = [compareDuration];
-    }
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readTime != null) {
-      _queryParams['readTime'] = [readTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (compareDuration != null) 'compareDuration': [compareDuration],
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readTime != null) 'readTime': [readTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/findings';
@@ -2413,13 +2281,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2465,10 +2330,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':setState';
@@ -2527,16 +2391,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (startTime != null) 'startTime': [startTime],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2597,10 +2456,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2733,31 +2591,16 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (compareDuration != null) {
-      _queryParams['compareDuration'] = [compareDuration];
-    }
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readTime != null) {
-      _queryParams['readTime'] = [readTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (compareDuration != null) 'compareDuration': [compareDuration],
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readTime != null) 'readTime': [readTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/assets';
@@ -2815,16 +2658,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (startTime != null) 'startTime': [startTime],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2882,16 +2720,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sources';
@@ -2953,10 +2786,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3084,31 +2916,16 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (compareDuration != null) {
-      _queryParams['compareDuration'] = [compareDuration];
-    }
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readTime != null) {
-      _queryParams['readTime'] = [readTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (compareDuration != null) 'compareDuration': [compareDuration],
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readTime != null) 'readTime': [readTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/findings';
@@ -3164,13 +2981,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3216,10 +3030,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':setState';
@@ -3278,16 +3091,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (startTime != null) 'startTime': [startTime],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/serviceconsumermanagement/v1.dart b/generated/googleapis/lib/serviceconsumermanagement/v1.dart
index 30d98b6..2987af3 100644
--- a/generated/googleapis/lib/serviceconsumermanagement/v1.dart
+++ b/generated/googleapis/lib/serviceconsumermanagement/v1.dart
@@ -103,10 +103,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -148,10 +147,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -190,10 +188,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -247,19 +244,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -332,19 +322,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + ':search';
@@ -401,10 +384,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -465,10 +447,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -524,10 +505,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -581,10 +561,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -628,10 +607,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -683,10 +661,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -748,19 +725,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -814,10 +784,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -868,10 +837,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
diff --git a/generated/googleapis/lib/servicecontrol/v1.dart b/generated/googleapis/lib/servicecontrol/v1.dart
index f514c54..2b56c60 100644
--- a/generated/googleapis/lib/servicecontrol/v1.dart
+++ b/generated/googleapis/lib/servicecontrol/v1.dart
@@ -103,10 +103,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -164,10 +163,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -225,10 +223,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
diff --git a/generated/googleapis/lib/servicecontrol/v2.dart b/generated/googleapis/lib/servicecontrol/v2.dart
index d4f6e21..f5c4f3d 100644
--- a/generated/googleapis/lib/servicecontrol/v2.dart
+++ b/generated/googleapis/lib/servicecontrol/v2.dart
@@ -112,10 +112,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -174,10 +173,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
diff --git a/generated/googleapis/lib/servicedirectory/v1.dart b/generated/googleapis/lib/servicedirectory/v1.dart
index 3f2e014..9875eba 100644
--- a/generated/googleapis/lib/servicedirectory/v1.dart
+++ b/generated/googleapis/lib/servicedirectory/v1.dart
@@ -101,10 +101,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -149,19 +148,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -223,13 +215,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (namespaceId != null) {
-      _queryParams['namespaceId'] = [namespaceId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (namespaceId != null) 'namespaceId': [namespaceId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -271,10 +260,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -311,10 +299,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -358,10 +345,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -432,22 +418,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -496,13 +473,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -547,10 +521,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -597,10 +570,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -665,13 +637,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (serviceId != null) {
-      _queryParams['serviceId'] = [serviceId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (serviceId != null) 'serviceId': [serviceId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/services';
@@ -712,10 +681,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -752,10 +720,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -799,10 +766,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -871,22 +837,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/services';
@@ -934,13 +891,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -985,10 +939,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':resolve';
@@ -1035,10 +988,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1085,10 +1037,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1151,13 +1102,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endpointId != null) {
-      _queryParams['endpointId'] = [endpointId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endpointId != null) 'endpointId': [endpointId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/endpoints';
@@ -1196,10 +1144,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1236,10 +1183,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1307,22 +1253,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/endpoints';
@@ -1371,13 +1308,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/servicemanagement/v1.dart b/generated/googleapis/lib/servicemanagement/v1.dart
index 4137a66..efeeabb 100644
--- a/generated/googleapis/lib/servicemanagement/v1.dart
+++ b/generated/googleapis/lib/servicemanagement/v1.dart
@@ -107,10 +107,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -164,22 +163,13 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (name != null) 'name': [name],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/operations';
 
@@ -231,10 +221,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/services';
 
@@ -277,10 +266,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' + commons.Escaper.ecapeVariable('$serviceName');
 
@@ -324,10 +312,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -373,10 +360,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/services:generateConfigReport';
 
@@ -417,10 +403,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' + commons.Escaper.ecapeVariable('$serviceName');
 
@@ -473,16 +458,11 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (configId != null) {
-      _queryParams['configId'] = [configId];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (configId != null) 'configId': [configId],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -530,10 +510,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -587,22 +566,13 @@
     core.String producerProjectId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (consumerId != null) {
-      _queryParams['consumerId'] = [consumerId];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (producerProjectId != null) {
-      _queryParams['producerProjectId'] = [producerProjectId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (consumerId != null) 'consumerId': [consumerId],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (producerProjectId != null) 'producerProjectId': [producerProjectId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/services';
 
@@ -649,10 +619,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -703,10 +672,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -751,10 +719,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -809,10 +776,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -870,13 +836,10 @@
     if (configId == null) {
       throw core.ArgumentError('Parameter configId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -924,16 +887,11 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -987,10 +945,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -1045,10 +1002,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1097,10 +1053,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1151,10 +1106,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1215,10 +1169,9 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -1264,10 +1217,9 @@
     if (rolloutId == null) {
       throw core.ArgumentError('Parameter rolloutId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
@@ -1323,19 +1275,12 @@
     if (serviceName == null) {
       throw core.ArgumentError('Parameter serviceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/services/' +
         commons.Escaper.ecapeVariable('$serviceName') +
diff --git a/generated/googleapis/lib/servicenetworking/v1.dart b/generated/googleapis/lib/servicenetworking/v1.dart
index 3512f2b..8f2a4d6 100644
--- a/generated/googleapis/lib/servicenetworking/v1.dart
+++ b/generated/googleapis/lib/servicenetworking/v1.dart
@@ -114,10 +114,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -159,10 +158,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -201,10 +199,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -258,19 +255,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -342,10 +332,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -391,10 +380,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -440,10 +428,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -495,10 +482,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -549,10 +535,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + ':validate';
@@ -612,10 +597,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -667,13 +651,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (network != null) {
-      _queryParams['network'] = [network];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (network != null) 'network': [network],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -730,16 +711,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -791,10 +767,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -841,10 +816,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -891,10 +865,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -948,10 +921,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -999,10 +971,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1079,10 +1050,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1135,10 +1105,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1201,10 +1170,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1252,10 +1220,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1299,10 +1266,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1359,10 +1325,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/roles:add';
diff --git a/generated/googleapis/lib/serviceusage/v1.dart b/generated/googleapis/lib/serviceusage/v1.dart
index 77946ff..f77aac6 100644
--- a/generated/googleapis/lib/serviceusage/v1.dart
+++ b/generated/googleapis/lib/serviceusage/v1.dart
@@ -111,10 +111,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -156,10 +155,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -198,10 +196,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -251,22 +248,13 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (name != null) 'name': [name],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/operations';
 
@@ -320,10 +308,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -372,13 +359,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (names != null) {
-      _queryParams['names'] = names;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (names != null) 'names': names,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -431,10 +415,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':disable';
@@ -482,10 +465,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':enable';
@@ -526,10 +508,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -589,19 +570,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/services';
diff --git a/generated/googleapis/lib/sheets/v4.dart b/generated/googleapis/lib/sheets/v4.dart
index 697757e..03f788b 100644
--- a/generated/googleapis/lib/sheets/v4.dart
+++ b/generated/googleapis/lib/sheets/v4.dart
@@ -125,10 +125,9 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -166,10 +165,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v4/spreadsheets';
 
@@ -224,16 +222,11 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeGridData != null) {
-      _queryParams['includeGridData'] = ['${includeGridData}'];
-    }
-    if (ranges != null) {
-      _queryParams['ranges'] = ranges;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeGridData != null) 'includeGridData': ['${includeGridData}'],
+      if (ranges != null) 'ranges': ranges,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v4/spreadsheets/' + commons.Escaper.ecapeVariable('$spreadsheetId');
@@ -288,10 +281,9 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -346,10 +338,9 @@
     if (metadataId == null) {
       throw core.ArgumentError('Parameter metadataId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -398,10 +389,9 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -459,10 +449,9 @@
     if (sheetId == null) {
       throw core.ArgumentError('Parameter sheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -592,27 +581,17 @@
     if (range == null) {
       throw core.ArgumentError('Parameter range is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeValuesInResponse != null) {
-      _queryParams['includeValuesInResponse'] = ['${includeValuesInResponse}'];
-    }
-    if (insertDataOption != null) {
-      _queryParams['insertDataOption'] = [insertDataOption];
-    }
-    if (responseDateTimeRenderOption != null) {
-      _queryParams['responseDateTimeRenderOption'] = [
-        responseDateTimeRenderOption
-      ];
-    }
-    if (responseValueRenderOption != null) {
-      _queryParams['responseValueRenderOption'] = [responseValueRenderOption];
-    }
-    if (valueInputOption != null) {
-      _queryParams['valueInputOption'] = [valueInputOption];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeValuesInResponse != null)
+        'includeValuesInResponse': ['${includeValuesInResponse}'],
+      if (insertDataOption != null) 'insertDataOption': [insertDataOption],
+      if (responseDateTimeRenderOption != null)
+        'responseDateTimeRenderOption': [responseDateTimeRenderOption],
+      if (responseValueRenderOption != null)
+        'responseValueRenderOption': [responseValueRenderOption],
+      if (valueInputOption != null) 'valueInputOption': [valueInputOption],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -662,10 +641,9 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -714,10 +692,9 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -806,22 +783,14 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dateTimeRenderOption != null) {
-      _queryParams['dateTimeRenderOption'] = [dateTimeRenderOption];
-    }
-    if (majorDimension != null) {
-      _queryParams['majorDimension'] = [majorDimension];
-    }
-    if (ranges != null) {
-      _queryParams['ranges'] = ranges;
-    }
-    if (valueRenderOption != null) {
-      _queryParams['valueRenderOption'] = [valueRenderOption];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dateTimeRenderOption != null)
+        'dateTimeRenderOption': [dateTimeRenderOption],
+      if (majorDimension != null) 'majorDimension': [majorDimension],
+      if (ranges != null) 'ranges': ranges,
+      if (valueRenderOption != null) 'valueRenderOption': [valueRenderOption],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -868,10 +837,9 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -918,10 +886,9 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -968,10 +935,9 @@
     if (spreadsheetId == null) {
       throw core.ArgumentError('Parameter spreadsheetId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -1025,10 +991,9 @@
     if (range == null) {
       throw core.ArgumentError('Parameter range is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -1122,19 +1087,13 @@
     if (range == null) {
       throw core.ArgumentError('Parameter range is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dateTimeRenderOption != null) {
-      _queryParams['dateTimeRenderOption'] = [dateTimeRenderOption];
-    }
-    if (majorDimension != null) {
-      _queryParams['majorDimension'] = [majorDimension];
-    }
-    if (valueRenderOption != null) {
-      _queryParams['valueRenderOption'] = [valueRenderOption];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dateTimeRenderOption != null)
+        'dateTimeRenderOption': [dateTimeRenderOption],
+      if (majorDimension != null) 'majorDimension': [majorDimension],
+      if (valueRenderOption != null) 'valueRenderOption': [valueRenderOption],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
@@ -1240,24 +1199,16 @@
     if (range == null) {
       throw core.ArgumentError('Parameter range is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeValuesInResponse != null) {
-      _queryParams['includeValuesInResponse'] = ['${includeValuesInResponse}'];
-    }
-    if (responseDateTimeRenderOption != null) {
-      _queryParams['responseDateTimeRenderOption'] = [
-        responseDateTimeRenderOption
-      ];
-    }
-    if (responseValueRenderOption != null) {
-      _queryParams['responseValueRenderOption'] = [responseValueRenderOption];
-    }
-    if (valueInputOption != null) {
-      _queryParams['valueInputOption'] = [valueInputOption];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeValuesInResponse != null)
+        'includeValuesInResponse': ['${includeValuesInResponse}'],
+      if (responseDateTimeRenderOption != null)
+        'responseDateTimeRenderOption': [responseDateTimeRenderOption],
+      if (responseValueRenderOption != null)
+        'responseValueRenderOption': [responseValueRenderOption],
+      if (valueInputOption != null) 'valueInputOption': [valueInputOption],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v4/spreadsheets/' +
         commons.Escaper.ecapeVariable('$spreadsheetId') +
diff --git a/generated/googleapis/lib/siteverification/v1.dart b/generated/googleapis/lib/siteverification/v1.dart
index eddc453..d160b72 100644
--- a/generated/googleapis/lib/siteverification/v1.dart
+++ b/generated/googleapis/lib/siteverification/v1.dart
@@ -84,10 +84,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'webResource/' + commons.Escaper.ecapeVariable('$id');
 
@@ -122,10 +121,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'webResource/' + commons.Escaper.ecapeVariable('$id');
 
@@ -160,10 +158,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'token';
 
@@ -202,14 +199,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (verificationMethod == null) {
       throw core.ArgumentError('Parameter verificationMethod is required.');
     }
-    _queryParams['verificationMethod'] = [verificationMethod];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'verificationMethod': [verificationMethod],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'webResource';
 
@@ -240,10 +236,9 @@
   async.Future<SiteVerificationWebResourceListResponse> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'webResource';
 
@@ -286,10 +281,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'webResource/' + commons.Escaper.ecapeVariable('$id');
 
@@ -331,10 +325,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'webResource/' + commons.Escaper.ecapeVariable('$id');
 
diff --git a/generated/googleapis/lib/slides/v1.dart b/generated/googleapis/lib/slides/v1.dart
index d439ab6..f9cc426 100644
--- a/generated/googleapis/lib/slides/v1.dart
+++ b/generated/googleapis/lib/slides/v1.dart
@@ -128,10 +128,9 @@
     if (presentationId == null) {
       throw core.ArgumentError('Parameter presentationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/presentations/' +
         commons.Escaper.ecapeVariable('$presentationId') +
@@ -174,10 +173,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/presentations';
 
@@ -215,10 +213,9 @@
     if (presentationId == null) {
       throw core.ArgumentError('Parameter presentationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/presentations/' +
         commons.Escaper.ecapeVariableReserved('$presentationId');
@@ -267,10 +264,9 @@
     if (pageObjectId == null) {
       throw core.ArgumentError('Parameter pageObjectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/presentations/' +
         commons.Escaper.ecapeVariable('$presentationId') +
@@ -336,20 +332,15 @@
     if (pageObjectId == null) {
       throw core.ArgumentError('Parameter pageObjectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (thumbnailProperties_mimeType != null) {
-      _queryParams['thumbnailProperties.mimeType'] = [
-        thumbnailProperties_mimeType
-      ];
-    }
-    if (thumbnailProperties_thumbnailSize != null) {
-      _queryParams['thumbnailProperties.thumbnailSize'] = [
-        thumbnailProperties_thumbnailSize
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (thumbnailProperties_mimeType != null)
+        'thumbnailProperties.mimeType': [thumbnailProperties_mimeType],
+      if (thumbnailProperties_thumbnailSize != null)
+        'thumbnailProperties.thumbnailSize': [
+          thumbnailProperties_thumbnailSize
+        ],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/presentations/' +
         commons.Escaper.ecapeVariable('$presentationId') +
diff --git a/generated/googleapis/lib/smartdevicemanagement/v1.dart b/generated/googleapis/lib/smartdevicemanagement/v1.dart
index 8c2f8f6..b881014 100644
--- a/generated/googleapis/lib/smartdevicemanagement/v1.dart
+++ b/generated/googleapis/lib/smartdevicemanagement/v1.dart
@@ -105,10 +105,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -149,10 +148,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -201,19 +199,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/devices';
@@ -262,10 +253,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -313,19 +303,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -373,10 +356,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -421,16 +403,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/rooms';
diff --git a/generated/googleapis/lib/sourcerepo/v1.dart b/generated/googleapis/lib/sourcerepo/v1.dart
index 35993d9..f814472 100644
--- a/generated/googleapis/lib/sourcerepo/v1.dart
+++ b/generated/googleapis/lib/sourcerepo/v1.dart
@@ -101,10 +101,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/config';
@@ -148,10 +147,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/config';
@@ -205,10 +203,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/repos';
@@ -247,10 +244,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -287,10 +283,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -340,15 +335,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -399,16 +390,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/repos';
@@ -452,10 +438,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -501,10 +486,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -551,10 +535,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':sync';
@@ -602,10 +585,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
diff --git a/generated/googleapis/lib/spanner/v1.dart b/generated/googleapis/lib/spanner/v1.dart
index c9d10bb..4ee6bd1 100644
--- a/generated/googleapis/lib/spanner/v1.dart
+++ b/generated/googleapis/lib/spanner/v1.dart
@@ -116,10 +116,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -166,16 +165,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -255,10 +249,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -302,10 +295,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -347,13 +339,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fieldMask != null) {
-      _queryParams['fieldMask'] = [fieldMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fieldMask != null) 'fieldMask': [fieldMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -399,10 +388,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -468,22 +456,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (instanceDeadline != null) {
-      _queryParams['instanceDeadline'] = [instanceDeadline];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (instanceDeadline != null) 'instanceDeadline': [instanceDeadline],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/instances';
@@ -551,10 +530,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -601,10 +579,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -656,10 +633,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -752,19 +728,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -835,13 +804,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (backupId != null) {
-      _queryParams['backupId'] = [backupId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (backupId != null) 'backupId': [backupId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/backups';
@@ -881,10 +847,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -922,10 +887,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -974,10 +938,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1051,19 +1014,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/backups';
@@ -1121,13 +1077,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1177,10 +1130,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1235,10 +1187,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1295,10 +1246,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1340,10 +1290,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1383,10 +1332,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1441,19 +1389,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1542,19 +1483,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1616,10 +1550,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/databases';
@@ -1661,10 +1594,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$database');
 
@@ -1702,10 +1634,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1747,10 +1678,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$database') + '/ddl';
@@ -1801,10 +1731,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1852,16 +1781,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/databases';
@@ -1919,10 +1843,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1974,10 +1897,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2032,10 +1954,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2087,10 +2008,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$database') + '/ddl';
@@ -2145,10 +2065,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -2190,10 +2109,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2233,10 +2151,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2291,19 +2208,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2356,10 +2266,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -2408,10 +2317,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -2469,10 +2377,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$session') + ':commit';
@@ -2530,10 +2437,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -2576,10 +2482,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2630,10 +2535,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -2688,10 +2592,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -2741,10 +2644,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -2788,10 +2690,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2844,19 +2745,12 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$database') +
@@ -2911,10 +2805,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -2973,10 +2866,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -3031,10 +2923,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$session') + ':read';
@@ -3085,10 +2976,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$session') + ':rollback';
@@ -3136,10 +3026,9 @@
     if (session == null) {
       throw core.ArgumentError('Parameter session is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$session') +
@@ -3196,10 +3085,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -3241,10 +3129,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3284,10 +3171,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3341,19 +3227,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/speech/v1.dart b/generated/googleapis/lib/speech/v1.dart
index bbc2f50..e4e96bf 100644
--- a/generated/googleapis/lib/speech/v1.dart
+++ b/generated/googleapis/lib/speech/v1.dart
@@ -93,10 +93,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/operations/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -147,22 +146,13 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (name != null) 'name': [name],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/operations';
 
@@ -228,10 +218,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -285,19 +274,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -345,10 +327,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/speech:longrunningrecognize';
 
@@ -384,10 +365,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/speech:recognize';
 
diff --git a/generated/googleapis/lib/storage/v1.dart b/generated/googleapis/lib/storage/v1.dart
index 080caf5..1754f32 100644
--- a/generated/googleapis/lib/storage/v1.dart
+++ b/generated/googleapis/lib/storage/v1.dart
@@ -142,16 +142,12 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -205,16 +201,12 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -266,16 +258,12 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket') + '/acl';
 
@@ -320,16 +308,12 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket') + '/acl';
 
@@ -386,16 +370,12 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -456,16 +436,12 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -525,22 +501,16 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket');
 
@@ -599,25 +569,17 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket');
 
@@ -665,21 +627,14 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (optionsRequestedPolicyVersion != null) {
-      _queryParams['optionsRequestedPolicyVersion'] = [
-        '${optionsRequestedPolicyVersion}'
-      ];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (optionsRequestedPolicyVersion != null)
+        'optionsRequestedPolicyVersion': ['${optionsRequestedPolicyVersion}'],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket') + '/iam';
 
@@ -761,29 +716,20 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    _queryParams['project'] = [project];
-    if (predefinedAcl != null) {
-      _queryParams['predefinedAcl'] = [predefinedAcl];
-    }
-    if (predefinedDefaultObjectAcl != null) {
-      _queryParams['predefinedDefaultObjectAcl'] = [predefinedDefaultObjectAcl];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'project': [project],
+      if (predefinedAcl != null) 'predefinedAcl': [predefinedAcl],
+      if (predefinedDefaultObjectAcl != null)
+        'predefinedDefaultObjectAcl': [predefinedDefaultObjectAcl],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'b';
 
@@ -840,32 +786,20 @@
     core.String userProject,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    _queryParams['project'] = [project];
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (prefix != null) {
-      _queryParams['prefix'] = [prefix];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'project': [project],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (prefix != null) 'prefix': [prefix],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'b';
 
@@ -912,20 +846,16 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (ifMetagenerationMatch == null) {
       throw core.ArgumentError('Parameter ifMetagenerationMatch is required.');
     }
-    _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -1024,31 +954,20 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (predefinedAcl != null) {
-      _queryParams['predefinedAcl'] = [predefinedAcl];
-    }
-    if (predefinedDefaultObjectAcl != null) {
-      _queryParams['predefinedDefaultObjectAcl'] = [predefinedDefaultObjectAcl];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (predefinedAcl != null) 'predefinedAcl': [predefinedAcl],
+      if (predefinedDefaultObjectAcl != null)
+        'predefinedDefaultObjectAcl': [predefinedDefaultObjectAcl],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket');
 
@@ -1097,16 +1016,12 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket') + '/iam';
 
@@ -1154,20 +1069,16 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (permissions == null || permissions.isEmpty) {
       throw core.ArgumentError('Parameter permissions is required.');
     }
-    _queryParams['permissions'] = permissions;
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'permissions': permissions,
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -1267,31 +1178,20 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (predefinedAcl != null) {
-      _queryParams['predefinedAcl'] = [predefinedAcl];
-    }
-    if (predefinedDefaultObjectAcl != null) {
-      _queryParams['predefinedDefaultObjectAcl'] = [predefinedDefaultObjectAcl];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (predefinedAcl != null) 'predefinedAcl': [predefinedAcl],
+      if (predefinedDefaultObjectAcl != null)
+        'predefinedDefaultObjectAcl': [predefinedDefaultObjectAcl],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket');
 
@@ -1330,10 +1230,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'channels/stop';
 
@@ -1391,16 +1290,12 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -1455,16 +1350,12 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -1516,16 +1407,12 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'b/' + commons.Escaper.ecapeVariable('$bucket') + '/defaultObjectAcl';
@@ -1579,22 +1466,16 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'b/' + commons.Escaper.ecapeVariable('$bucket') + '/defaultObjectAcl';
@@ -1652,16 +1533,12 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -1722,16 +1599,12 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -1789,16 +1662,12 @@
     if (notification == null) {
       throw core.ArgumentError('Parameter notification is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -1850,16 +1719,12 @@
     if (notification == null) {
       throw core.ArgumentError('Parameter notification is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -1911,16 +1776,12 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -1967,16 +1828,12 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -2047,19 +1904,13 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -2126,19 +1977,13 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -2203,19 +2048,13 @@
     if (object == null) {
       throw core.ArgumentError('Parameter object is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -2275,19 +2114,13 @@
     if (object == null) {
       throw core.ArgumentError('Parameter object is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -2359,19 +2192,13 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -2445,19 +2272,13 @@
     if (entity == null) {
       throw core.ArgumentError('Parameter entity is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -2558,28 +2379,18 @@
     if (destinationObject == null) {
       throw core.ArgumentError('Parameter destinationObject is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (destinationPredefinedAcl != null) {
-      _queryParams['destinationPredefinedAcl'] = [destinationPredefinedAcl];
-    }
-    if (ifGenerationMatch != null) {
-      _queryParams['ifGenerationMatch'] = [ifGenerationMatch];
-    }
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (kmsKeyName != null) {
-      _queryParams['kmsKeyName'] = [kmsKeyName];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (destinationPredefinedAcl != null)
+        'destinationPredefinedAcl': [destinationPredefinedAcl],
+      if (ifGenerationMatch != null) 'ifGenerationMatch': [ifGenerationMatch],
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (kmsKeyName != null) 'kmsKeyName': [kmsKeyName],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$destinationBucket') +
@@ -2729,56 +2540,33 @@
     if (destinationObject == null) {
       throw core.ArgumentError('Parameter destinationObject is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (destinationKmsKeyName != null) {
-      _queryParams['destinationKmsKeyName'] = [destinationKmsKeyName];
-    }
-    if (destinationPredefinedAcl != null) {
-      _queryParams['destinationPredefinedAcl'] = [destinationPredefinedAcl];
-    }
-    if (ifGenerationMatch != null) {
-      _queryParams['ifGenerationMatch'] = [ifGenerationMatch];
-    }
-    if (ifGenerationNotMatch != null) {
-      _queryParams['ifGenerationNotMatch'] = [ifGenerationNotMatch];
-    }
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (ifSourceGenerationMatch != null) {
-      _queryParams['ifSourceGenerationMatch'] = [ifSourceGenerationMatch];
-    }
-    if (ifSourceGenerationNotMatch != null) {
-      _queryParams['ifSourceGenerationNotMatch'] = [ifSourceGenerationNotMatch];
-    }
-    if (ifSourceMetagenerationMatch != null) {
-      _queryParams['ifSourceMetagenerationMatch'] = [
-        ifSourceMetagenerationMatch
-      ];
-    }
-    if (ifSourceMetagenerationNotMatch != null) {
-      _queryParams['ifSourceMetagenerationNotMatch'] = [
-        ifSourceMetagenerationNotMatch
-      ];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (sourceGeneration != null) {
-      _queryParams['sourceGeneration'] = [sourceGeneration];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (destinationKmsKeyName != null)
+        'destinationKmsKeyName': [destinationKmsKeyName],
+      if (destinationPredefinedAcl != null)
+        'destinationPredefinedAcl': [destinationPredefinedAcl],
+      if (ifGenerationMatch != null) 'ifGenerationMatch': [ifGenerationMatch],
+      if (ifGenerationNotMatch != null)
+        'ifGenerationNotMatch': [ifGenerationNotMatch],
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (ifSourceGenerationMatch != null)
+        'ifSourceGenerationMatch': [ifSourceGenerationMatch],
+      if (ifSourceGenerationNotMatch != null)
+        'ifSourceGenerationNotMatch': [ifSourceGenerationNotMatch],
+      if (ifSourceMetagenerationMatch != null)
+        'ifSourceMetagenerationMatch': [ifSourceMetagenerationMatch],
+      if (ifSourceMetagenerationNotMatch != null)
+        'ifSourceMetagenerationNotMatch': [ifSourceMetagenerationNotMatch],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (sourceGeneration != null) 'sourceGeneration': [sourceGeneration],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$sourceBucket') +
@@ -2860,31 +2648,20 @@
     if (object == null) {
       throw core.ArgumentError('Parameter object is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (ifGenerationMatch != null) {
-      _queryParams['ifGenerationMatch'] = [ifGenerationMatch];
-    }
-    if (ifGenerationNotMatch != null) {
-      _queryParams['ifGenerationNotMatch'] = [ifGenerationNotMatch];
-    }
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (ifGenerationMatch != null) 'ifGenerationMatch': [ifGenerationMatch],
+      if (ifGenerationNotMatch != null)
+        'ifGenerationNotMatch': [ifGenerationNotMatch],
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -2975,34 +2752,21 @@
     if (object == null) {
       throw core.ArgumentError('Parameter object is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (ifGenerationMatch != null) {
-      _queryParams['ifGenerationMatch'] = [ifGenerationMatch];
-    }
-    if (ifGenerationNotMatch != null) {
-      _queryParams['ifGenerationNotMatch'] = [ifGenerationNotMatch];
-    }
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (ifGenerationMatch != null) 'ifGenerationMatch': [ifGenerationMatch],
+      if (ifGenerationNotMatch != null)
+        'ifGenerationNotMatch': [ifGenerationNotMatch],
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -3065,19 +2829,13 @@
     if (object == null) {
       throw core.ArgumentError('Parameter object is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -3199,43 +2957,24 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (contentEncoding != null) {
-      _queryParams['contentEncoding'] = [contentEncoding];
-    }
-    if (ifGenerationMatch != null) {
-      _queryParams['ifGenerationMatch'] = [ifGenerationMatch];
-    }
-    if (ifGenerationNotMatch != null) {
-      _queryParams['ifGenerationNotMatch'] = [ifGenerationNotMatch];
-    }
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (kmsKeyName != null) {
-      _queryParams['kmsKeyName'] = [kmsKeyName];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if (predefinedAcl != null) {
-      _queryParams['predefinedAcl'] = [predefinedAcl];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (contentEncoding != null) 'contentEncoding': [contentEncoding],
+      if (ifGenerationMatch != null) 'ifGenerationMatch': [ifGenerationMatch],
+      if (ifGenerationNotMatch != null)
+        'ifGenerationNotMatch': [ifGenerationNotMatch],
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (kmsKeyName != null) 'kmsKeyName': [kmsKeyName],
+      if (name != null) 'name': [name],
+      if (predefinedAcl != null) 'predefinedAcl': [predefinedAcl],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -3338,45 +3077,22 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (delimiter != null) {
-      _queryParams['delimiter'] = [delimiter];
-    }
-    if (endOffset != null) {
-      _queryParams['endOffset'] = [endOffset];
-    }
-    if (includeTrailingDelimiter != null) {
-      _queryParams['includeTrailingDelimiter'] = [
-        '${includeTrailingDelimiter}'
-      ];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (prefix != null) {
-      _queryParams['prefix'] = [prefix];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (startOffset != null) {
-      _queryParams['startOffset'] = [startOffset];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if (versions != null) {
-      _queryParams['versions'] = ['${versions}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (delimiter != null) 'delimiter': [delimiter],
+      if (endOffset != null) 'endOffset': [endOffset],
+      if (includeTrailingDelimiter != null)
+        'includeTrailingDelimiter': ['${includeTrailingDelimiter}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (prefix != null) 'prefix': [prefix],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (startOffset != null) 'startOffset': [startOffset],
+      if (userProject != null) 'userProject': [userProject],
+      if (versions != null) 'versions': ['${versions}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket') + '/o';
 
@@ -3476,37 +3192,22 @@
     if (object == null) {
       throw core.ArgumentError('Parameter object is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (ifGenerationMatch != null) {
-      _queryParams['ifGenerationMatch'] = [ifGenerationMatch];
-    }
-    if (ifGenerationNotMatch != null) {
-      _queryParams['ifGenerationNotMatch'] = [ifGenerationNotMatch];
-    }
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (predefinedAcl != null) {
-      _queryParams['predefinedAcl'] = [predefinedAcl];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (ifGenerationMatch != null) 'ifGenerationMatch': [ifGenerationMatch],
+      if (ifGenerationNotMatch != null)
+        'ifGenerationNotMatch': [ifGenerationNotMatch],
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (predefinedAcl != null) 'predefinedAcl': [predefinedAcl],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -3669,62 +3370,36 @@
     if (destinationObject == null) {
       throw core.ArgumentError('Parameter destinationObject is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (destinationKmsKeyName != null) {
-      _queryParams['destinationKmsKeyName'] = [destinationKmsKeyName];
-    }
-    if (destinationPredefinedAcl != null) {
-      _queryParams['destinationPredefinedAcl'] = [destinationPredefinedAcl];
-    }
-    if (ifGenerationMatch != null) {
-      _queryParams['ifGenerationMatch'] = [ifGenerationMatch];
-    }
-    if (ifGenerationNotMatch != null) {
-      _queryParams['ifGenerationNotMatch'] = [ifGenerationNotMatch];
-    }
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (ifSourceGenerationMatch != null) {
-      _queryParams['ifSourceGenerationMatch'] = [ifSourceGenerationMatch];
-    }
-    if (ifSourceGenerationNotMatch != null) {
-      _queryParams['ifSourceGenerationNotMatch'] = [ifSourceGenerationNotMatch];
-    }
-    if (ifSourceMetagenerationMatch != null) {
-      _queryParams['ifSourceMetagenerationMatch'] = [
-        ifSourceMetagenerationMatch
-      ];
-    }
-    if (ifSourceMetagenerationNotMatch != null) {
-      _queryParams['ifSourceMetagenerationNotMatch'] = [
-        ifSourceMetagenerationNotMatch
-      ];
-    }
-    if (maxBytesRewrittenPerCall != null) {
-      _queryParams['maxBytesRewrittenPerCall'] = [maxBytesRewrittenPerCall];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (rewriteToken != null) {
-      _queryParams['rewriteToken'] = [rewriteToken];
-    }
-    if (sourceGeneration != null) {
-      _queryParams['sourceGeneration'] = [sourceGeneration];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (destinationKmsKeyName != null)
+        'destinationKmsKeyName': [destinationKmsKeyName],
+      if (destinationPredefinedAcl != null)
+        'destinationPredefinedAcl': [destinationPredefinedAcl],
+      if (ifGenerationMatch != null) 'ifGenerationMatch': [ifGenerationMatch],
+      if (ifGenerationNotMatch != null)
+        'ifGenerationNotMatch': [ifGenerationNotMatch],
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (ifSourceGenerationMatch != null)
+        'ifSourceGenerationMatch': [ifSourceGenerationMatch],
+      if (ifSourceGenerationNotMatch != null)
+        'ifSourceGenerationNotMatch': [ifSourceGenerationNotMatch],
+      if (ifSourceMetagenerationMatch != null)
+        'ifSourceMetagenerationMatch': [ifSourceMetagenerationMatch],
+      if (ifSourceMetagenerationNotMatch != null)
+        'ifSourceMetagenerationNotMatch': [ifSourceMetagenerationNotMatch],
+      if (maxBytesRewrittenPerCall != null)
+        'maxBytesRewrittenPerCall': [maxBytesRewrittenPerCall],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (rewriteToken != null) 'rewriteToken': [rewriteToken],
+      if (sourceGeneration != null) 'sourceGeneration': [sourceGeneration],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$sourceBucket') +
@@ -3792,19 +3467,13 @@
     if (object == null) {
       throw core.ArgumentError('Parameter object is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -3867,23 +3536,17 @@
     if (object == null) {
       throw core.ArgumentError('Parameter object is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (permissions == null || permissions.isEmpty) {
       throw core.ArgumentError('Parameter permissions is required.');
     }
-    _queryParams['permissions'] = permissions;
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'permissions': permissions,
+      if (generation != null) 'generation': [generation],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -3988,37 +3651,22 @@
     if (object == null) {
       throw core.ArgumentError('Parameter object is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (generation != null) {
-      _queryParams['generation'] = [generation];
-    }
-    if (ifGenerationMatch != null) {
-      _queryParams['ifGenerationMatch'] = [ifGenerationMatch];
-    }
-    if (ifGenerationNotMatch != null) {
-      _queryParams['ifGenerationNotMatch'] = [ifGenerationNotMatch];
-    }
-    if (ifMetagenerationMatch != null) {
-      _queryParams['ifMetagenerationMatch'] = [ifMetagenerationMatch];
-    }
-    if (ifMetagenerationNotMatch != null) {
-      _queryParams['ifMetagenerationNotMatch'] = [ifMetagenerationNotMatch];
-    }
-    if (predefinedAcl != null) {
-      _queryParams['predefinedAcl'] = [predefinedAcl];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (generation != null) 'generation': [generation],
+      if (ifGenerationMatch != null) 'ifGenerationMatch': [ifGenerationMatch],
+      if (ifGenerationNotMatch != null)
+        'ifGenerationNotMatch': [ifGenerationNotMatch],
+      if (ifMetagenerationMatch != null)
+        'ifMetagenerationMatch': [ifMetagenerationMatch],
+      if (ifMetagenerationNotMatch != null)
+        'ifMetagenerationNotMatch': [ifMetagenerationNotMatch],
+      if (predefinedAcl != null) 'predefinedAcl': [predefinedAcl],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' +
         commons.Escaper.ecapeVariable('$bucket') +
@@ -4116,45 +3764,22 @@
     if (bucket == null) {
       throw core.ArgumentError('Parameter bucket is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (delimiter != null) {
-      _queryParams['delimiter'] = [delimiter];
-    }
-    if (endOffset != null) {
-      _queryParams['endOffset'] = [endOffset];
-    }
-    if (includeTrailingDelimiter != null) {
-      _queryParams['includeTrailingDelimiter'] = [
-        '${includeTrailingDelimiter}'
-      ];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (prefix != null) {
-      _queryParams['prefix'] = [prefix];
-    }
-    if (projection != null) {
-      _queryParams['projection'] = [projection];
-    }
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (startOffset != null) {
-      _queryParams['startOffset'] = [startOffset];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if (versions != null) {
-      _queryParams['versions'] = ['${versions}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (delimiter != null) 'delimiter': [delimiter],
+      if (endOffset != null) 'endOffset': [endOffset],
+      if (includeTrailingDelimiter != null)
+        'includeTrailingDelimiter': ['${includeTrailingDelimiter}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (prefix != null) 'prefix': [prefix],
+      if (projection != null) 'projection': [projection],
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (startOffset != null) 'startOffset': [startOffset],
+      if (userProject != null) 'userProject': [userProject],
+      if (versions != null) 'versions': ['${versions}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'b/' + commons.Escaper.ecapeVariable('$bucket') + '/o/watch';
 
@@ -4212,17 +3837,14 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (serviceAccountEmail == null) {
       throw core.ArgumentError('Parameter serviceAccountEmail is required.');
     }
-    _queryParams['serviceAccountEmail'] = [serviceAccountEmail];
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'serviceAccountEmail': [serviceAccountEmail],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$projectId') + '/hmacKeys';
@@ -4265,13 +3887,10 @@
     if (accessId == null) {
       throw core.ArgumentError('Parameter accessId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -4318,13 +3937,10 @@
     if (accessId == null) {
       throw core.ArgumentError('Parameter accessId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -4385,25 +4001,15 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (serviceAccountEmail != null) {
-      _queryParams['serviceAccountEmail'] = [serviceAccountEmail];
-    }
-    if (showDeletedKeys != null) {
-      _queryParams['showDeletedKeys'] = ['${showDeletedKeys}'];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (serviceAccountEmail != null)
+        'serviceAccountEmail': [serviceAccountEmail],
+      if (showDeletedKeys != null) 'showDeletedKeys': ['${showDeletedKeys}'],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'projects/' + commons.Escaper.ecapeVariable('$projectId') + '/hmacKeys';
@@ -4456,13 +4062,10 @@
     if (accessId == null) {
       throw core.ArgumentError('Parameter accessId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -4517,16 +4120,12 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (provisionalUserProject != null) {
-      _queryParams['provisionalUserProject'] = [provisionalUserProject];
-    }
-    if (userProject != null) {
-      _queryParams['userProject'] = [userProject];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (provisionalUserProject != null)
+        'provisionalUserProject': [provisionalUserProject],
+      if (userProject != null) 'userProject': [userProject],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
diff --git a/generated/googleapis/lib/storagetransfer/v1.dart b/generated/googleapis/lib/storagetransfer/v1.dart
index 6297fd7..f397878 100644
--- a/generated/googleapis/lib/storagetransfer/v1.dart
+++ b/generated/googleapis/lib/storagetransfer/v1.dart
@@ -100,10 +100,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/googleServiceAccounts/' +
         commons.Escaper.ecapeVariable('$projectId');
@@ -145,10 +144,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/transferJobs';
 
@@ -190,14 +188,13 @@
     if (jobName == null) {
       throw core.ArgumentError('Parameter jobName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    _queryParams['projectId'] = [projectId];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'projectId': [projectId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$jobName');
 
@@ -243,20 +240,15 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (filter == null) {
       throw core.ArgumentError('Parameter filter is required.');
     }
-    _queryParams['filter'] = [filter];
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/transferJobs';
 
@@ -303,10 +295,9 @@
     if (jobName == null) {
       throw core.ArgumentError('Parameter jobName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$jobName');
 
@@ -373,10 +364,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -417,10 +407,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -474,20 +463,15 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (filter == null) {
       throw core.ArgumentError('Parameter filter is required.');
     }
-    _queryParams['filter'] = [filter];
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -529,10 +513,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':pause';
@@ -575,10 +558,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':resume';
diff --git a/generated/googleapis/lib/streetviewpublish/v1.dart b/generated/googleapis/lib/streetviewpublish/v1.dart
index e59e39f..f7353e7 100644
--- a/generated/googleapis/lib/streetviewpublish/v1.dart
+++ b/generated/googleapis/lib/streetviewpublish/v1.dart
@@ -102,10 +102,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/photo';
 
@@ -146,10 +145,9 @@
     if (photoId == null) {
       throw core.ArgumentError('Parameter photoId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/photo/' + commons.Escaper.ecapeVariable('$photoId');
 
@@ -206,16 +204,11 @@
     if (photoId == null) {
       throw core.ArgumentError('Parameter photoId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/photo/' + commons.Escaper.ecapeVariable('$photoId');
 
@@ -261,10 +254,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/photo:startUpload';
 
@@ -328,13 +320,10 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/photo/' + commons.Escaper.ecapeVariable('$id');
 
@@ -382,10 +371,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/photos:batchDelete';
 
@@ -442,19 +430,12 @@
     core.String view,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (photoIds != null) {
-      _queryParams['photoIds'] = photoIds;
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (photoIds != null) 'photoIds': photoIds,
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/photos:batchGet';
 
@@ -502,10 +483,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/photos:batchUpdate';
 
@@ -571,25 +551,14 @@
     core.String view,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/photos';
 
diff --git a/generated/googleapis/lib/sts/v1.dart b/generated/googleapis/lib/sts/v1.dart
index 30eeb2e..b2de4ef 100644
--- a/generated/googleapis/lib/sts/v1.dart
+++ b/generated/googleapis/lib/sts/v1.dart
@@ -83,10 +83,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/token';
 
diff --git a/generated/googleapis/lib/tagmanager/v1.dart b/generated/googleapis/lib/tagmanager/v1.dart
index 760b25e..3be1473 100644
--- a/generated/googleapis/lib/tagmanager/v1.dart
+++ b/generated/googleapis/lib/tagmanager/v1.dart
@@ -125,10 +125,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v1/accounts/' + commons.Escaper.ecapeVariable('$accountId');
@@ -158,10 +157,9 @@
   async.Future<ListAccountsResponse> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'tagmanager/v1/accounts';
 
@@ -206,13 +204,10 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v1/accounts/' + commons.Escaper.ecapeVariable('$accountId');
@@ -278,10 +273,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -323,10 +317,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -370,10 +363,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -411,10 +403,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -467,13 +458,10 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -530,10 +518,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -584,10 +571,9 @@
     if (environmentId == null) {
       throw core.ArgumentError('Parameter environmentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -639,10 +625,9 @@
     if (environmentId == null) {
       throw core.ArgumentError('Parameter environmentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -689,10 +674,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -753,13 +737,10 @@
     if (environmentId == null) {
       throw core.ArgumentError('Parameter environmentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -822,10 +803,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -875,10 +855,9 @@
     if (folderId == null) {
       throw core.ArgumentError('Parameter folderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -930,10 +909,9 @@
     if (folderId == null) {
       throw core.ArgumentError('Parameter folderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -979,10 +957,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1043,13 +1020,10 @@
     if (folderId == null) {
       throw core.ArgumentError('Parameter folderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1109,10 +1083,9 @@
     if (folderId == null) {
       throw core.ArgumentError('Parameter folderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1185,19 +1158,12 @@
     if (folderId == null) {
       throw core.ArgumentError('Parameter folderId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (tagId != null) {
-      _queryParams['tagId'] = tagId;
-    }
-    if (triggerId != null) {
-      _queryParams['triggerId'] = triggerId;
-    }
-    if (variableId != null) {
-      _queryParams['variableId'] = variableId;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (tagId != null) 'tagId': tagId,
+      if (triggerId != null) 'triggerId': triggerId,
+      if (variableId != null) 'variableId': variableId,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1262,10 +1228,9 @@
     if (environmentId == null) {
       throw core.ArgumentError('Parameter environmentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1325,10 +1290,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1378,10 +1342,9 @@
     if (tagId == null) {
       throw core.ArgumentError('Parameter tagId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1433,10 +1396,9 @@
     if (tagId == null) {
       throw core.ArgumentError('Parameter tagId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1482,10 +1444,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1546,13 +1507,10 @@
     if (tagId == null) {
       throw core.ArgumentError('Parameter tagId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1611,10 +1569,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1664,10 +1621,9 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1719,10 +1675,9 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1768,10 +1723,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1832,13 +1786,10 @@
     if (triggerId == null) {
       throw core.ArgumentError('Parameter triggerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1897,10 +1848,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1950,10 +1900,9 @@
     if (variableId == null) {
       throw core.ArgumentError('Parameter variableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2005,10 +1954,9 @@
     if (variableId == null) {
       throw core.ArgumentError('Parameter variableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2054,10 +2002,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2118,13 +2065,10 @@
     if (variableId == null) {
       throw core.ArgumentError('Parameter variableId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2183,10 +2127,9 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2237,10 +2180,9 @@
     if (containerVersionId == null) {
       throw core.ArgumentError('Parameter containerVersionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2293,10 +2235,9 @@
     if (containerVersionId == null) {
       throw core.ArgumentError('Parameter containerVersionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2349,16 +2290,11 @@
     if (containerId == null) {
       throw core.ArgumentError('Parameter containerId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (headers != null) {
-      _queryParams['headers'] = ['${headers}'];
-    }
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (headers != null) 'headers': ['${headers}'],
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2414,13 +2350,10 @@
     if (containerVersionId == null) {
       throw core.ArgumentError('Parameter containerVersionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2478,10 +2411,9 @@
     if (containerVersionId == null) {
       throw core.ArgumentError('Parameter containerVersionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2535,10 +2467,9 @@
     if (containerVersionId == null) {
       throw core.ArgumentError('Parameter containerVersionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2601,13 +2532,10 @@
     if (containerVersionId == null) {
       throw core.ArgumentError('Parameter containerVersionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2661,10 +2589,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2708,10 +2635,9 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2755,10 +2681,9 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2798,10 +2723,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2850,10 +2774,9 @@
     if (permissionId == null) {
       throw core.ArgumentError('Parameter permissionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
diff --git a/generated/googleapis/lib/tagmanager/v2.dart b/generated/googleapis/lib/tagmanager/v2.dart
index dddc022..823a5b1 100644
--- a/generated/googleapis/lib/tagmanager/v2.dart
+++ b/generated/googleapis/lib/tagmanager/v2.dart
@@ -128,10 +128,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -164,13 +163,10 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'tagmanager/v2/accounts';
 
@@ -216,13 +212,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -281,10 +274,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -322,10 +314,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -363,10 +354,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -407,13 +397,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -462,13 +449,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -519,10 +503,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -562,10 +545,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -604,10 +586,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -649,13 +630,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -701,10 +679,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -755,13 +732,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -808,10 +782,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -857,16 +830,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeDeleted != null) {
-      _queryParams['includeDeleted'] = ['${includeDeleted}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeDeleted != null) 'includeDeleted': ['${includeDeleted}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -912,10 +880,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -958,13 +925,11 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (containerVersionId != null) {
-      _queryParams['containerVersionId'] = [containerVersionId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (containerVersionId != null)
+        'containerVersionId': [containerVersionId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -1003,10 +968,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1051,13 +1015,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -1099,10 +1060,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -1143,10 +1103,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -1196,13 +1155,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -1269,10 +1225,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1320,10 +1275,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -1363,10 +1317,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -1405,10 +1358,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -1447,10 +1399,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -1493,13 +1444,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1541,10 +1489,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -1593,13 +1540,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -1642,10 +1586,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -1695,13 +1638,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -1752,13 +1692,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (type != null) {
-      _queryParams['type'] = type;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (type != null) 'type': type,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1800,13 +1737,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (type != null) {
-      _queryParams['type'] = type;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (type != null) 'type': type,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -1848,13 +1782,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2009,13 +1940,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -2068,10 +1996,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2110,10 +2037,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -2155,13 +2081,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -2202,10 +2125,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -2247,13 +2169,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2306,19 +2225,12 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (tagId != null) {
-      _queryParams['tagId'] = tagId;
-    }
-    if (triggerId != null) {
-      _queryParams['triggerId'] = triggerId;
-    }
-    if (variableId != null) {
-      _queryParams['variableId'] = variableId;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (tagId != null) 'tagId': tagId,
+      if (triggerId != null) 'triggerId': triggerId,
+      if (variableId != null) 'variableId': variableId,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -2363,13 +2275,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -2419,13 +2328,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -2477,10 +2383,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2519,10 +2424,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -2561,10 +2465,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -2606,13 +2509,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2657,13 +2557,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -2713,13 +2610,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -2771,10 +2665,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2814,10 +2707,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -2856,10 +2748,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -2902,13 +2793,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2953,13 +2841,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -3009,13 +2894,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3068,10 +2950,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3110,10 +2991,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3152,10 +3032,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3197,13 +3076,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3248,13 +3124,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -3304,13 +3177,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3362,10 +3232,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3404,10 +3273,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3446,10 +3314,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3491,13 +3358,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3542,13 +3406,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -3598,13 +3459,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3656,10 +3514,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3698,10 +3555,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3740,10 +3596,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3785,13 +3640,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3836,13 +3688,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$path') +
@@ -3892,13 +3741,10 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (fingerprint != null) {
-      _queryParams['fingerprint'] = [fingerprint];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (fingerprint != null) 'fingerprint': [fingerprint],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -3948,10 +3794,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3991,10 +3836,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -4032,10 +3876,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
@@ -4078,13 +3921,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tagmanager/v2/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -4129,10 +3969,9 @@
     if (path == null) {
       throw core.ArgumentError('Parameter path is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'tagmanager/v2/' + commons.Escaper.ecapeVariableReserved('$path');
diff --git a/generated/googleapis/lib/tasks/v1.dart b/generated/googleapis/lib/tasks/v1.dart
index 7765424..055195f 100644
--- a/generated/googleapis/lib/tasks/v1.dart
+++ b/generated/googleapis/lib/tasks/v1.dart
@@ -85,10 +85,9 @@
     if (tasklist == null) {
       throw core.ArgumentError('Parameter tasklist is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/users/@me/lists/' +
         commons.Escaper.ecapeVariable('$tasklist');
@@ -124,10 +123,9 @@
     if (tasklist == null) {
       throw core.ArgumentError('Parameter tasklist is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/users/@me/lists/' +
         commons.Escaper.ecapeVariable('$tasklist');
@@ -163,10 +161,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'tasks/v1/users/@me/lists';
 
@@ -203,16 +200,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'tasks/v1/users/@me/lists';
 
@@ -254,10 +246,9 @@
     if (tasklist == null) {
       throw core.ArgumentError('Parameter tasklist is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/users/@me/lists/' +
         commons.Escaper.ecapeVariable('$tasklist');
@@ -299,10 +290,9 @@
     if (tasklist == null) {
       throw core.ArgumentError('Parameter tasklist is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/users/@me/lists/' +
         commons.Escaper.ecapeVariable('$tasklist');
@@ -346,10 +336,9 @@
     if (tasklist == null) {
       throw core.ArgumentError('Parameter tasklist is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/lists/' +
         commons.Escaper.ecapeVariable('$tasklist') +
@@ -390,10 +379,9 @@
     if (task == null) {
       throw core.ArgumentError('Parameter task is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/lists/' +
         commons.Escaper.ecapeVariable('$tasklist') +
@@ -437,10 +425,9 @@
     if (task == null) {
       throw core.ArgumentError('Parameter task is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/lists/' +
         commons.Escaper.ecapeVariable('$tasklist') +
@@ -492,16 +479,11 @@
     if (tasklist == null) {
       throw core.ArgumentError('Parameter tasklist is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if (previous != null) {
-      _queryParams['previous'] = [previous];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parent != null) 'parent': [parent],
+      if (previous != null) 'previous': [previous],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/lists/' +
         commons.Escaper.ecapeVariable('$tasklist') +
@@ -583,40 +565,19 @@
     if (tasklist == null) {
       throw core.ArgumentError('Parameter tasklist is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (completedMax != null) {
-      _queryParams['completedMax'] = [completedMax];
-    }
-    if (completedMin != null) {
-      _queryParams['completedMin'] = [completedMin];
-    }
-    if (dueMax != null) {
-      _queryParams['dueMax'] = [dueMax];
-    }
-    if (dueMin != null) {
-      _queryParams['dueMin'] = [dueMin];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showCompleted != null) {
-      _queryParams['showCompleted'] = ['${showCompleted}'];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if (showHidden != null) {
-      _queryParams['showHidden'] = ['${showHidden}'];
-    }
-    if (updatedMin != null) {
-      _queryParams['updatedMin'] = [updatedMin];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (completedMax != null) 'completedMax': [completedMax],
+      if (completedMin != null) 'completedMin': [completedMin],
+      if (dueMax != null) 'dueMax': [dueMax],
+      if (dueMin != null) 'dueMin': [dueMin],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showCompleted != null) 'showCompleted': ['${showCompleted}'],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if (showHidden != null) 'showHidden': ['${showHidden}'],
+      if (updatedMin != null) 'updatedMin': [updatedMin],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/lists/' +
         commons.Escaper.ecapeVariable('$tasklist') +
@@ -671,16 +632,11 @@
     if (task == null) {
       throw core.ArgumentError('Parameter task is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (parent != null) {
-      _queryParams['parent'] = [parent];
-    }
-    if (previous != null) {
-      _queryParams['previous'] = [previous];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (parent != null) 'parent': [parent],
+      if (previous != null) 'previous': [previous],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/lists/' +
         commons.Escaper.ecapeVariable('$tasklist') +
@@ -732,10 +688,9 @@
     if (task == null) {
       throw core.ArgumentError('Parameter task is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/lists/' +
         commons.Escaper.ecapeVariable('$tasklist') +
@@ -785,10 +740,9 @@
     if (task == null) {
       throw core.ArgumentError('Parameter task is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'tasks/v1/lists/' +
         commons.Escaper.ecapeVariable('$tasklist') +
diff --git a/generated/googleapis/lib/testing/v1.dart b/generated/googleapis/lib/testing/v1.dart
index 7f0a45e..6a4baee 100644
--- a/generated/googleapis/lib/testing/v1.dart
+++ b/generated/googleapis/lib/testing/v1.dart
@@ -95,10 +95,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/applicationDetailService/getApkDetails';
 
@@ -163,10 +162,9 @@
     if (testMatrixId == null) {
       throw core.ArgumentError('Parameter testMatrixId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -222,13 +220,10 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -277,10 +272,9 @@
     if (testMatrixId == null) {
       throw core.ArgumentError('Parameter testMatrixId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -345,13 +339,10 @@
     if (environmentType == null) {
       throw core.ArgumentError('Parameter environmentType is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (projectId != null) {
-      _queryParams['projectId'] = [projectId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (projectId != null) 'projectId': [projectId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/testEnvironmentCatalog/' +
         commons.Escaper.ecapeVariable('$environmentType');
diff --git a/generated/googleapis/lib/texttospeech/v1.dart b/generated/googleapis/lib/texttospeech/v1.dart
index b4ce746..a9d0042 100644
--- a/generated/googleapis/lib/texttospeech/v1.dart
+++ b/generated/googleapis/lib/texttospeech/v1.dart
@@ -86,10 +86,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/text:synthesize';
 
@@ -136,13 +135,10 @@
     core.String languageCode,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/voices';
 
diff --git a/generated/googleapis/lib/tpu/v1.dart b/generated/googleapis/lib/tpu/v1.dart
index 0a5f0a1..a2fc704 100644
--- a/generated/googleapis/lib/tpu/v1.dart
+++ b/generated/googleapis/lib/tpu/v1.dart
@@ -106,10 +106,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -154,19 +153,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -212,10 +204,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -265,22 +256,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -334,13 +316,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (nodeId != null) {
-      _queryParams['nodeId'] = [nodeId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (nodeId != null) 'nodeId': [nodeId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/nodes';
@@ -379,10 +358,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -419,10 +397,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -465,16 +442,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/nodes';
@@ -518,10 +490,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':reimage';
@@ -565,10 +536,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':start';
@@ -612,10 +582,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':stop';
@@ -670,10 +639,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -715,10 +683,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -758,10 +725,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -815,19 +781,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -873,10 +832,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -926,22 +884,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis/lib/trafficdirector/v2.dart b/generated/googleapis/lib/trafficdirector/v2.dart
index 9f40e23..6750ea2 100644
--- a/generated/googleapis/lib/trafficdirector/v2.dart
+++ b/generated/googleapis/lib/trafficdirector/v2.dart
@@ -76,10 +76,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/discovery:client_status';
 
diff --git a/generated/googleapis/lib/translate/v3.dart b/generated/googleapis/lib/translate/v3.dart
index 8ad9d90..95329b4 100644
--- a/generated/googleapis/lib/translate/v3.dart
+++ b/generated/googleapis/lib/translate/v3.dart
@@ -106,10 +106,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -170,16 +169,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (displayLanguageCode != null) {
-      _queryParams['displayLanguageCode'] = [displayLanguageCode];
-    }
-    if (model != null) {
-      _queryParams['model'] = [model];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (displayLanguageCode != null)
+        'displayLanguageCode': [displayLanguageCode],
+      if (model != null) 'model': [model],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -230,10 +225,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -300,10 +294,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -354,10 +347,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -397,10 +389,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -457,16 +448,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (displayLanguageCode != null) {
-      _queryParams['displayLanguageCode'] = [displayLanguageCode];
-    }
-    if (model != null) {
-      _queryParams['model'] = [model];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (displayLanguageCode != null)
+        'displayLanguageCode': [displayLanguageCode],
+      if (model != null) 'model': [model],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -514,19 +501,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/locations';
@@ -576,10 +556,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -633,10 +612,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -679,10 +657,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -721,10 +698,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -792,19 +768,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -865,10 +834,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -911,10 +879,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -954,10 +921,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1011,19 +977,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -1076,10 +1035,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v3/' + commons.Escaper.ecapeVariableReserved('$name') + ':wait';
diff --git a/generated/googleapis/lib/vault/v1.dart b/generated/googleapis/lib/vault/v1.dart
index d5ea7d6..ec8fb62 100644
--- a/generated/googleapis/lib/vault/v1.dart
+++ b/generated/googleapis/lib/vault/v1.dart
@@ -101,10 +101,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -150,10 +149,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/matters/' + commons.Escaper.ecapeVariable('$matterId') + ':close';
@@ -197,10 +195,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/matters/' + commons.Escaper.ecapeVariable('$matterId') + ':count';
@@ -239,10 +236,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/matters';
 
@@ -280,10 +276,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' + commons.Escaper.ecapeVariable('$matterId');
 
@@ -327,13 +322,10 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' + commons.Escaper.ecapeVariable('$matterId');
 
@@ -387,22 +379,13 @@
     core.String view,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (state != null) {
-      _queryParams['state'] = [state];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (state != null) 'state': [state],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/matters';
 
@@ -443,10 +426,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -491,10 +473,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/matters/' + commons.Escaper.ecapeVariable('$matterId') + ':reopen';
@@ -539,10 +520,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -589,10 +569,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' + commons.Escaper.ecapeVariable('$matterId');
 
@@ -639,10 +618,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/matters/' + commons.Escaper.ecapeVariable('$matterId') + '/exports';
@@ -685,10 +663,9 @@
     if (exportId == null) {
       throw core.ArgumentError('Parameter exportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -732,10 +709,9 @@
     if (exportId == null) {
       throw core.ArgumentError('Parameter exportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -779,16 +755,11 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/matters/' + commons.Escaper.ecapeVariable('$matterId') + '/exports';
@@ -848,10 +819,9 @@
     if (holdId == null) {
       throw core.ArgumentError('Parameter holdId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -897,10 +867,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/matters/' + commons.Escaper.ecapeVariable('$matterId') + '/holds';
@@ -945,10 +914,9 @@
     if (holdId == null) {
       throw core.ArgumentError('Parameter holdId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1003,13 +971,10 @@
     if (holdId == null) {
       throw core.ArgumentError('Parameter holdId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1069,19 +1034,12 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/matters/' + commons.Escaper.ecapeVariable('$matterId') + '/holds';
@@ -1133,10 +1091,9 @@
     if (holdId == null) {
       throw core.ArgumentError('Parameter holdId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1192,10 +1149,9 @@
     if (holdId == null) {
       throw core.ArgumentError('Parameter holdId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1255,10 +1211,9 @@
     if (holdId == null) {
       throw core.ArgumentError('Parameter holdId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1314,10 +1269,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1366,10 +1320,9 @@
     if (holdId == null) {
       throw core.ArgumentError('Parameter holdId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1422,10 +1375,9 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1471,10 +1423,9 @@
     if (savedQueryId == null) {
       throw core.ArgumentError('Parameter savedQueryId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1519,10 +1470,9 @@
     if (savedQueryId == null) {
       throw core.ArgumentError('Parameter savedQueryId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1572,16 +1522,11 @@
     if (matterId == null) {
       throw core.ArgumentError('Parameter matterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/matters/' +
         commons.Escaper.ecapeVariable('$matterId') +
@@ -1640,10 +1585,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1685,10 +1629,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1727,10 +1670,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1784,19 +1726,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/vectortile/v1.dart b/generated/googleapis/lib/vectortile/v1.dart
index 24481e6..1c621b3 100644
--- a/generated/googleapis/lib/vectortile/v1.dart
+++ b/generated/googleapis/lib/vectortile/v1.dart
@@ -183,69 +183,42 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (alwaysIncludeBuildingFootprints != null) {
-      _queryParams['alwaysIncludeBuildingFootprints'] = [
-        '${alwaysIncludeBuildingFootprints}'
-      ];
-    }
-    if (clientInfo_apiClient != null) {
-      _queryParams['clientInfo.apiClient'] = [clientInfo_apiClient];
-    }
-    if (clientInfo_applicationId != null) {
-      _queryParams['clientInfo.applicationId'] = [clientInfo_applicationId];
-    }
-    if (clientInfo_applicationVersion != null) {
-      _queryParams['clientInfo.applicationVersion'] = [
-        clientInfo_applicationVersion
-      ];
-    }
-    if (clientInfo_deviceModel != null) {
-      _queryParams['clientInfo.deviceModel'] = [clientInfo_deviceModel];
-    }
-    if (clientInfo_operatingSystem != null) {
-      _queryParams['clientInfo.operatingSystem'] = [clientInfo_operatingSystem];
-    }
-    if (clientInfo_platform != null) {
-      _queryParams['clientInfo.platform'] = [clientInfo_platform];
-    }
-    if (clientInfo_userId != null) {
-      _queryParams['clientInfo.userId'] = [clientInfo_userId];
-    }
-    if (clientTileVersionId != null) {
-      _queryParams['clientTileVersionId'] = [clientTileVersionId];
-    }
-    if (enableDetailedHighwayTypes != null) {
-      _queryParams['enableDetailedHighwayTypes'] = [
-        '${enableDetailedHighwayTypes}'
-      ];
-    }
-    if (enableFeatureNames != null) {
-      _queryParams['enableFeatureNames'] = ['${enableFeatureNames}'];
-    }
-    if (enableModeledVolumes != null) {
-      _queryParams['enableModeledVolumes'] = ['${enableModeledVolumes}'];
-    }
-    if (enablePoliticalFeatures != null) {
-      _queryParams['enablePoliticalFeatures'] = ['${enablePoliticalFeatures}'];
-    }
-    if (enablePrivateRoads != null) {
-      _queryParams['enablePrivateRoads'] = ['${enablePrivateRoads}'];
-    }
-    if (enableUnclippedBuildings != null) {
-      _queryParams['enableUnclippedBuildings'] = [
-        '${enableUnclippedBuildings}'
-      ];
-    }
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (regionCode != null) {
-      _queryParams['regionCode'] = [regionCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (alwaysIncludeBuildingFootprints != null)
+        'alwaysIncludeBuildingFootprints': [
+          '${alwaysIncludeBuildingFootprints}'
+        ],
+      if (clientInfo_apiClient != null)
+        'clientInfo.apiClient': [clientInfo_apiClient],
+      if (clientInfo_applicationId != null)
+        'clientInfo.applicationId': [clientInfo_applicationId],
+      if (clientInfo_applicationVersion != null)
+        'clientInfo.applicationVersion': [clientInfo_applicationVersion],
+      if (clientInfo_deviceModel != null)
+        'clientInfo.deviceModel': [clientInfo_deviceModel],
+      if (clientInfo_operatingSystem != null)
+        'clientInfo.operatingSystem': [clientInfo_operatingSystem],
+      if (clientInfo_platform != null)
+        'clientInfo.platform': [clientInfo_platform],
+      if (clientInfo_userId != null) 'clientInfo.userId': [clientInfo_userId],
+      if (clientTileVersionId != null)
+        'clientTileVersionId': [clientTileVersionId],
+      if (enableDetailedHighwayTypes != null)
+        'enableDetailedHighwayTypes': ['${enableDetailedHighwayTypes}'],
+      if (enableFeatureNames != null)
+        'enableFeatureNames': ['${enableFeatureNames}'],
+      if (enableModeledVolumes != null)
+        'enableModeledVolumes': ['${enableModeledVolumes}'],
+      if (enablePoliticalFeatures != null)
+        'enablePoliticalFeatures': ['${enablePoliticalFeatures}'],
+      if (enablePrivateRoads != null)
+        'enablePrivateRoads': ['${enablePrivateRoads}'],
+      if (enableUnclippedBuildings != null)
+        'enableUnclippedBuildings': ['${enableUnclippedBuildings}'],
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (regionCode != null) 'regionCode': [regionCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -358,51 +331,29 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (altitudePrecisionCentimeters != null) {
-      _queryParams['altitudePrecisionCentimeters'] = [
-        '${altitudePrecisionCentimeters}'
-      ];
-    }
-    if (clientInfo_apiClient != null) {
-      _queryParams['clientInfo.apiClient'] = [clientInfo_apiClient];
-    }
-    if (clientInfo_applicationId != null) {
-      _queryParams['clientInfo.applicationId'] = [clientInfo_applicationId];
-    }
-    if (clientInfo_applicationVersion != null) {
-      _queryParams['clientInfo.applicationVersion'] = [
-        clientInfo_applicationVersion
-      ];
-    }
-    if (clientInfo_deviceModel != null) {
-      _queryParams['clientInfo.deviceModel'] = [clientInfo_deviceModel];
-    }
-    if (clientInfo_operatingSystem != null) {
-      _queryParams['clientInfo.operatingSystem'] = [clientInfo_operatingSystem];
-    }
-    if (clientInfo_platform != null) {
-      _queryParams['clientInfo.platform'] = [clientInfo_platform];
-    }
-    if (clientInfo_userId != null) {
-      _queryParams['clientInfo.userId'] = [clientInfo_userId];
-    }
-    if (maxElevationResolutionCells != null) {
-      _queryParams['maxElevationResolutionCells'] = [
-        '${maxElevationResolutionCells}'
-      ];
-    }
-    if (minElevationResolutionCells != null) {
-      _queryParams['minElevationResolutionCells'] = [
-        '${minElevationResolutionCells}'
-      ];
-    }
-    if (terrainFormats != null) {
-      _queryParams['terrainFormats'] = terrainFormats;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (altitudePrecisionCentimeters != null)
+        'altitudePrecisionCentimeters': ['${altitudePrecisionCentimeters}'],
+      if (clientInfo_apiClient != null)
+        'clientInfo.apiClient': [clientInfo_apiClient],
+      if (clientInfo_applicationId != null)
+        'clientInfo.applicationId': [clientInfo_applicationId],
+      if (clientInfo_applicationVersion != null)
+        'clientInfo.applicationVersion': [clientInfo_applicationVersion],
+      if (clientInfo_deviceModel != null)
+        'clientInfo.deviceModel': [clientInfo_deviceModel],
+      if (clientInfo_operatingSystem != null)
+        'clientInfo.operatingSystem': [clientInfo_operatingSystem],
+      if (clientInfo_platform != null)
+        'clientInfo.platform': [clientInfo_platform],
+      if (clientInfo_userId != null) 'clientInfo.userId': [clientInfo_userId],
+      if (maxElevationResolutionCells != null)
+        'maxElevationResolutionCells': ['${maxElevationResolutionCells}'],
+      if (minElevationResolutionCells != null)
+        'minElevationResolutionCells': ['${minElevationResolutionCells}'],
+      if (terrainFormats != null) 'terrainFormats': terrainFormats,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/verifiedaccess/v1.dart b/generated/googleapis/lib/verifiedaccess/v1.dart
index fd66f00..326ca69 100644
--- a/generated/googleapis/lib/verifiedaccess/v1.dart
+++ b/generated/googleapis/lib/verifiedaccess/v1.dart
@@ -84,10 +84,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/challenge';
 
@@ -122,10 +121,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/challenge:verify';
 
diff --git a/generated/googleapis/lib/videointelligence/v1.dart b/generated/googleapis/lib/videointelligence/v1.dart
index ade2e97..d4bb430 100644
--- a/generated/googleapis/lib/videointelligence/v1.dart
+++ b/generated/googleapis/lib/videointelligence/v1.dart
@@ -137,10 +137,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/operations/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -184,10 +183,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/operations/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -229,10 +227,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/operations/' + commons.Escaper.ecapeVariableReserved('$name');
@@ -310,10 +307,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -357,10 +353,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -401,10 +396,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -459,19 +453,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/operations';
@@ -518,10 +505,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/videos:annotate';
 
diff --git a/generated/googleapis/lib/vision/v1.dart b/generated/googleapis/lib/vision/v1.dart
index 82fbfbc..1785dea 100644
--- a/generated/googleapis/lib/vision/v1.dart
+++ b/generated/googleapis/lib/vision/v1.dart
@@ -115,10 +115,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/files:annotate';
 
@@ -161,10 +160,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/files:asyncBatchAnnotate';
 
@@ -205,10 +203,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/images:annotate';
 
@@ -251,10 +248,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/images:asyncBatchAnnotate';
 
@@ -310,10 +306,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -369,10 +364,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -414,10 +408,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -456,10 +449,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -513,19 +505,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -596,10 +581,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -655,10 +639,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -712,10 +695,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -771,10 +753,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -852,10 +833,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -911,10 +891,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -969,10 +948,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1028,10 +1006,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1081,10 +1058,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1141,10 +1117,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':addProduct';
@@ -1197,13 +1172,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (productSetId != null) {
-      _queryParams['productSetId'] = [productSetId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (productSetId != null) 'productSetId': [productSetId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1248,10 +1220,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1291,10 +1262,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1345,10 +1315,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1399,16 +1368,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1465,13 +1429,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1516,10 +1477,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1580,16 +1540,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + '/products';
@@ -1654,13 +1609,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (productId != null) {
-      _queryParams['productId'] = [productId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (productId != null) 'productId': [productId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/products';
@@ -1704,10 +1656,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1747,10 +1698,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1798,16 +1748,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/products';
@@ -1867,13 +1812,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1934,10 +1876,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2011,13 +1952,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (referenceImageId != null) {
-      _queryParams['referenceImageId'] = [referenceImageId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (referenceImageId != null) 'referenceImageId': [referenceImageId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2065,10 +2003,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2110,10 +2047,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2166,16 +2102,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2223,10 +2154,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis/lib/webfonts/v1.dart b/generated/googleapis/lib/webfonts/v1.dart
index b21e7f7..9de7112 100644
--- a/generated/googleapis/lib/webfonts/v1.dart
+++ b/generated/googleapis/lib/webfonts/v1.dart
@@ -85,13 +85,10 @@
     core.String sort,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sort != null) 'sort': [sort],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/webfonts';
 
diff --git a/generated/googleapis/lib/webmasters/v3.dart b/generated/googleapis/lib/webmasters/v3.dart
index 6bf44cc..5b51591 100644
--- a/generated/googleapis/lib/webmasters/v3.dart
+++ b/generated/googleapis/lib/webmasters/v3.dart
@@ -104,10 +104,9 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sites/' +
         commons.Escaper.ecapeVariable('$siteUrl') +
@@ -158,10 +157,9 @@
     if (feedpath == null) {
       throw core.ArgumentError('Parameter feedpath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sites/' +
         commons.Escaper.ecapeVariable('$siteUrl') +
@@ -207,10 +205,9 @@
     if (feedpath == null) {
       throw core.ArgumentError('Parameter feedpath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sites/' +
         commons.Escaper.ecapeVariable('$siteUrl') +
@@ -255,13 +252,10 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (sitemapIndex != null) {
-      _queryParams['sitemapIndex'] = [sitemapIndex];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (sitemapIndex != null) 'sitemapIndex': [sitemapIndex],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'sites/' + commons.Escaper.ecapeVariable('$siteUrl') + '/sitemaps';
@@ -304,10 +298,9 @@
     if (feedpath == null) {
       throw core.ArgumentError('Parameter feedpath is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sites/' +
         commons.Escaper.ecapeVariable('$siteUrl') +
@@ -349,10 +342,9 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sites/' + commons.Escaper.ecapeVariable('$siteUrl');
 
@@ -388,10 +380,9 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sites/' + commons.Escaper.ecapeVariable('$siteUrl');
 
@@ -429,10 +420,9 @@
     if (siteUrl == null) {
       throw core.ArgumentError('Parameter siteUrl is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sites/' + commons.Escaper.ecapeVariable('$siteUrl');
 
@@ -461,10 +451,9 @@
   async.Future<SitesListResponse> list({
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'sites';
 
diff --git a/generated/googleapis/lib/websecurityscanner/v1.dart b/generated/googleapis/lib/websecurityscanner/v1.dart
index 755538f..8a34b62 100644
--- a/generated/googleapis/lib/websecurityscanner/v1.dart
+++ b/generated/googleapis/lib/websecurityscanner/v1.dart
@@ -109,10 +109,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -154,10 +153,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -195,10 +193,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -246,16 +243,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -308,13 +300,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -359,10 +348,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':start';
@@ -417,10 +405,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -469,16 +456,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/scanRuns';
@@ -526,10 +508,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$name') + ':stop';
@@ -587,16 +568,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -646,10 +622,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -698,10 +673,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -754,19 +728,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/findings';
diff --git a/generated/googleapis/lib/youtube/v3.dart b/generated/googleapis/lib/youtube/v3.dart
index 8c29f13..4c7ec39 100644
--- a/generated/googleapis/lib/youtube/v3.dart
+++ b/generated/googleapis/lib/youtube/v3.dart
@@ -189,14 +189,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/abuseReports';
 
@@ -271,38 +270,21 @@
     core.String regionCode,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (channelId != null) {
-      _queryParams['channelId'] = [channelId];
-    }
-    if (home != null) {
-      _queryParams['home'] = ['${home}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (mine != null) {
-      _queryParams['mine'] = ['${mine}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (publishedAfter != null) {
-      _queryParams['publishedAfter'] = [publishedAfter];
-    }
-    if (publishedBefore != null) {
-      _queryParams['publishedBefore'] = [publishedBefore];
-    }
-    if (regionCode != null) {
-      _queryParams['regionCode'] = [regionCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (channelId != null) 'channelId': [channelId],
+      if (home != null) 'home': ['${home}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (mine != null) 'mine': ['${mine}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (publishedAfter != null) 'publishedAfter': [publishedAfter],
+      if (publishedBefore != null) 'publishedBefore': [publishedBefore],
+      if (regionCode != null) 'regionCode': [regionCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/activities';
 
@@ -355,20 +337,16 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if (onBehalfOf != null) {
-      _queryParams['onBehalfOf'] = [onBehalfOf];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if (onBehalfOf != null) 'onBehalfOf': [onBehalfOf],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/captions';
 
@@ -430,22 +408,14 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (onBehalfOf != null) {
-      _queryParams['onBehalfOf'] = [onBehalfOf];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (tfmt != null) {
-      _queryParams['tfmt'] = [tfmt];
-    }
-    if (tlang != null) {
-      _queryParams['tlang'] = [tlang];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (onBehalfOf != null) 'onBehalfOf': [onBehalfOf],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (tfmt != null) 'tfmt': [tfmt],
+      if (tlang != null) 'tlang': [tlang],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'youtube/v3/captions/' + commons.Escaper.ecapeVariable('$id');
 
@@ -517,23 +487,17 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOf != null) {
-      _queryParams['onBehalfOf'] = [onBehalfOf];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (sync != null) {
-      _queryParams['sync'] = ['${sync}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOf != null) 'onBehalfOf': [onBehalfOf],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (sync != null) 'sync': ['${sync}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -599,27 +563,21 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
     if (videoId == null) {
       throw core.ArgumentError('Parameter videoId is required.');
     }
-    _queryParams['videoId'] = [videoId];
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (onBehalfOf != null) {
-      _queryParams['onBehalfOf'] = [onBehalfOf];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      'videoId': [videoId],
+      if (id != null) 'id': id,
+      if (onBehalfOf != null) 'onBehalfOf': [onBehalfOf],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/captions';
 
@@ -687,23 +645,17 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOf != null) {
-      _queryParams['onBehalfOf'] = [onBehalfOf];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (sync != null) {
-      _queryParams['sync'] = ['${sync}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOf != null) 'onBehalfOf': [onBehalfOf],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (sync != null) 'sync': ['${sync}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -795,21 +747,14 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (channelId != null) {
-      _queryParams['channelId'] = [channelId];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (channelId != null) 'channelId': [channelId],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -868,17 +813,15 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/channelSections';
 
@@ -948,22 +891,17 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/channelSections';
 
@@ -1030,29 +968,19 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (channelId != null) {
-      _queryParams['channelId'] = [channelId];
-    }
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (mine != null) {
-      _queryParams['mine'] = ['${mine}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (channelId != null) 'channelId': [channelId],
+      if (hl != null) 'hl': [hl],
+      if (id != null) 'id': id,
+      if (mine != null) 'mine': ['${mine}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/channelSections';
 
@@ -1105,17 +1033,15 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/channelSections';
 
@@ -1208,44 +1134,24 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (categoryId != null) {
-      _queryParams['categoryId'] = [categoryId];
-    }
-    if (forUsername != null) {
-      _queryParams['forUsername'] = [forUsername];
-    }
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (managedByMe != null) {
-      _queryParams['managedByMe'] = ['${managedByMe}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (mine != null) {
-      _queryParams['mine'] = ['${mine}'];
-    }
-    if (mySubscribers != null) {
-      _queryParams['mySubscribers'] = ['${mySubscribers}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (categoryId != null) 'categoryId': [categoryId],
+      if (forUsername != null) 'forUsername': [forUsername],
+      if (hl != null) 'hl': [hl],
+      if (id != null) 'id': id,
+      if (managedByMe != null) 'managedByMe': ['${managedByMe}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (mine != null) 'mine': ['${mine}'],
+      if (mySubscribers != null) 'mySubscribers': ['${mySubscribers}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/channels';
 
@@ -1301,17 +1207,15 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/channels';
 
@@ -1357,14 +1261,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/commentThreads';
 
@@ -1452,46 +1355,24 @@
     core.String videoId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (allThreadsRelatedToChannelId != null) {
-      _queryParams['allThreadsRelatedToChannelId'] = [
-        allThreadsRelatedToChannelId
-      ];
-    }
-    if (channelId != null) {
-      _queryParams['channelId'] = [channelId];
-    }
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (moderationStatus != null) {
-      _queryParams['moderationStatus'] = [moderationStatus];
-    }
-    if (order != null) {
-      _queryParams['order'] = [order];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (searchTerms != null) {
-      _queryParams['searchTerms'] = [searchTerms];
-    }
-    if (textFormat != null) {
-      _queryParams['textFormat'] = [textFormat];
-    }
-    if (videoId != null) {
-      _queryParams['videoId'] = [videoId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (allThreadsRelatedToChannelId != null)
+        'allThreadsRelatedToChannelId': [allThreadsRelatedToChannelId],
+      if (channelId != null) 'channelId': [channelId],
+      if (id != null) 'id': id,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (moderationStatus != null) 'moderationStatus': [moderationStatus],
+      if (order != null) 'order': [order],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (searchTerms != null) 'searchTerms': [searchTerms],
+      if (textFormat != null) 'textFormat': [textFormat],
+      if (videoId != null) 'videoId': [videoId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/commentThreads';
 
@@ -1532,14 +1413,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/commentThreads';
 
@@ -1577,14 +1457,13 @@
     core.String id, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/comments';
 
@@ -1623,14 +1502,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/comments';
 
@@ -1689,29 +1567,18 @@
     core.String textFormat,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (parentId != null) {
-      _queryParams['parentId'] = [parentId];
-    }
-    if (textFormat != null) {
-      _queryParams['textFormat'] = [textFormat];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (id != null) 'id': id,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (parentId != null) 'parentId': [parentId],
+      if (textFormat != null) 'textFormat': [textFormat],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/comments';
 
@@ -1744,14 +1611,13 @@
     core.List<core.String> id, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null || id.isEmpty) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = id;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': id,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/comments/markAsSpam';
 
@@ -1798,21 +1664,18 @@
     core.bool banAuthor,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null || id.isEmpty) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = id;
     if (moderationStatus == null) {
       throw core.ArgumentError('Parameter moderationStatus is required.');
     }
-    _queryParams['moderationStatus'] = [moderationStatus];
-    if (banAuthor != null) {
-      _queryParams['banAuthor'] = ['${banAuthor}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': id,
+      'moderationStatus': [moderationStatus],
+      if (banAuthor != null) 'banAuthor': ['${banAuthor}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/comments/setModerationStatus';
 
@@ -1852,14 +1715,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/comments';
 
@@ -1903,17 +1765,14 @@
     core.String hl,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (hl != null) 'hl': [hl],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/i18nLanguages';
 
@@ -1956,17 +1815,14 @@
     core.String hl,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (hl != null) 'hl': [hl],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/i18nRegions';
 
@@ -2044,29 +1900,22 @@
     core.String streamId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if (streamId != null) {
-      _queryParams['streamId'] = [streamId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if (streamId != null) 'streamId': [streamId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveBroadcasts/bind';
 
@@ -2127,22 +1976,17 @@
     core.String onBehalfOfContentOwnerChannel,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveBroadcasts';
 
@@ -2213,22 +2057,17 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveBroadcasts';
 
@@ -2329,40 +2168,23 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (broadcastStatus != null) {
-      _queryParams['broadcastStatus'] = [broadcastStatus];
-    }
-    if (broadcastType != null) {
-      _queryParams['broadcastType'] = [broadcastType];
-    }
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (mine != null) {
-      _queryParams['mine'] = ['${mine}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (broadcastStatus != null) 'broadcastStatus': [broadcastStatus],
+      if (broadcastType != null) 'broadcastType': [broadcastType],
+      if (id != null) 'id': id,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (mine != null) 'mine': ['${mine}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveBroadcasts';
 
@@ -2444,30 +2266,25 @@
     core.String onBehalfOfContentOwnerChannel,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (broadcastStatus == null) {
       throw core.ArgumentError('Parameter broadcastStatus is required.');
     }
-    _queryParams['broadcastStatus'] = [broadcastStatus];
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'broadcastStatus': [broadcastStatus],
+      'id': [id],
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveBroadcasts/transition';
 
@@ -2547,22 +2364,17 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveBroadcasts';
 
@@ -2600,14 +2412,13 @@
     core.String id, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveChat/bans';
 
@@ -2647,14 +2458,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveChat/bans';
 
@@ -2692,14 +2502,13 @@
     core.String id, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveChat/messages';
 
@@ -2738,14 +2547,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveChat/messages';
 
@@ -2803,30 +2611,21 @@
     core.int profileImageSize,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (liveChatId == null) {
       throw core.ArgumentError('Parameter liveChatId is required.');
     }
-    _queryParams['liveChatId'] = [liveChatId];
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (profileImageSize != null) {
-      _queryParams['profileImageSize'] = ['${profileImageSize}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'liveChatId': [liveChatId],
+      'part': part,
+      if (hl != null) 'hl': [hl],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (profileImageSize != null) 'profileImageSize': ['${profileImageSize}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveChat/messages';
 
@@ -2863,14 +2662,13 @@
     core.String id, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveChat/moderators';
 
@@ -2910,14 +2708,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveChat/moderators';
 
@@ -2967,24 +2764,19 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (liveChatId == null) {
       throw core.ArgumentError('Parameter liveChatId is required.');
     }
-    _queryParams['liveChatId'] = [liveChatId];
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'liveChatId': [liveChatId],
+      'part': part,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveChat/moderators';
 
@@ -3051,22 +2843,17 @@
     core.String onBehalfOfContentOwnerChannel,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveStreams';
 
@@ -3137,22 +2924,17 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveStreams';
 
@@ -3237,34 +3019,21 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (mine != null) {
-      _queryParams['mine'] = ['${mine}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (id != null) 'id': id,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (mine != null) 'mine': ['${mine}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveStreams';
 
@@ -3339,22 +3108,17 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/liveStreams';
 
@@ -3421,29 +3185,19 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (filterByMemberChannelId != null) {
-      _queryParams['filterByMemberChannelId'] = [filterByMemberChannelId];
-    }
-    if (hasAccessToLevel != null) {
-      _queryParams['hasAccessToLevel'] = [hasAccessToLevel];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (mode != null) {
-      _queryParams['mode'] = [mode];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (filterByMemberChannelId != null)
+        'filterByMemberChannelId': [filterByMemberChannelId],
+      if (hasAccessToLevel != null) 'hasAccessToLevel': [hasAccessToLevel],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (mode != null) 'mode': [mode],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/members';
 
@@ -3484,14 +3238,13 @@
     core.List<core.String> part, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/membershipsLevels';
 
@@ -3540,17 +3293,15 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/playlistItems';
 
@@ -3601,17 +3352,15 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/playlistItems';
 
@@ -3683,32 +3432,20 @@
     core.String videoId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (playlistId != null) {
-      _queryParams['playlistId'] = [playlistId];
-    }
-    if (videoId != null) {
-      _queryParams['videoId'] = [videoId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (id != null) 'id': id,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (playlistId != null) 'playlistId': [playlistId],
+      if (videoId != null) 'videoId': [videoId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/playlistItems';
 
@@ -3770,17 +3507,15 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/playlistItems';
 
@@ -3830,17 +3565,15 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/playlists';
 
@@ -3909,22 +3642,17 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/playlists';
 
@@ -4015,40 +3743,23 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (channelId != null) {
-      _queryParams['channelId'] = [channelId];
-    }
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (mine != null) {
-      _queryParams['mine'] = ['${mine}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (channelId != null) 'channelId': [channelId],
+      if (hl != null) 'hl': [hl],
+      if (id != null) 'id': id,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (mine != null) 'mine': ['${mine}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/playlists';
 
@@ -4106,17 +3817,15 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/playlists';
 
@@ -4335,104 +4044,44 @@
     core.String videoType,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (channelId != null) {
-      _queryParams['channelId'] = [channelId];
-    }
-    if (channelType != null) {
-      _queryParams['channelType'] = [channelType];
-    }
-    if (eventType != null) {
-      _queryParams['eventType'] = [eventType];
-    }
-    if (forContentOwner != null) {
-      _queryParams['forContentOwner'] = ['${forContentOwner}'];
-    }
-    if (forDeveloper != null) {
-      _queryParams['forDeveloper'] = ['${forDeveloper}'];
-    }
-    if (forMine != null) {
-      _queryParams['forMine'] = ['${forMine}'];
-    }
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (locationRadius != null) {
-      _queryParams['locationRadius'] = [locationRadius];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (order != null) {
-      _queryParams['order'] = [order];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (publishedAfter != null) {
-      _queryParams['publishedAfter'] = [publishedAfter];
-    }
-    if (publishedBefore != null) {
-      _queryParams['publishedBefore'] = [publishedBefore];
-    }
-    if (q != null) {
-      _queryParams['q'] = [q];
-    }
-    if (regionCode != null) {
-      _queryParams['regionCode'] = [regionCode];
-    }
-    if (relatedToVideoId != null) {
-      _queryParams['relatedToVideoId'] = [relatedToVideoId];
-    }
-    if (relevanceLanguage != null) {
-      _queryParams['relevanceLanguage'] = [relevanceLanguage];
-    }
-    if (safeSearch != null) {
-      _queryParams['safeSearch'] = [safeSearch];
-    }
-    if (topicId != null) {
-      _queryParams['topicId'] = [topicId];
-    }
-    if (type != null) {
-      _queryParams['type'] = type;
-    }
-    if (videoCaption != null) {
-      _queryParams['videoCaption'] = [videoCaption];
-    }
-    if (videoCategoryId != null) {
-      _queryParams['videoCategoryId'] = [videoCategoryId];
-    }
-    if (videoDefinition != null) {
-      _queryParams['videoDefinition'] = [videoDefinition];
-    }
-    if (videoDimension != null) {
-      _queryParams['videoDimension'] = [videoDimension];
-    }
-    if (videoDuration != null) {
-      _queryParams['videoDuration'] = [videoDuration];
-    }
-    if (videoEmbeddable != null) {
-      _queryParams['videoEmbeddable'] = [videoEmbeddable];
-    }
-    if (videoLicense != null) {
-      _queryParams['videoLicense'] = [videoLicense];
-    }
-    if (videoSyndicated != null) {
-      _queryParams['videoSyndicated'] = [videoSyndicated];
-    }
-    if (videoType != null) {
-      _queryParams['videoType'] = [videoType];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (channelId != null) 'channelId': [channelId],
+      if (channelType != null) 'channelType': [channelType],
+      if (eventType != null) 'eventType': [eventType],
+      if (forContentOwner != null) 'forContentOwner': ['${forContentOwner}'],
+      if (forDeveloper != null) 'forDeveloper': ['${forDeveloper}'],
+      if (forMine != null) 'forMine': ['${forMine}'],
+      if (location != null) 'location': [location],
+      if (locationRadius != null) 'locationRadius': [locationRadius],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (order != null) 'order': [order],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (publishedAfter != null) 'publishedAfter': [publishedAfter],
+      if (publishedBefore != null) 'publishedBefore': [publishedBefore],
+      if (q != null) 'q': [q],
+      if (regionCode != null) 'regionCode': [regionCode],
+      if (relatedToVideoId != null) 'relatedToVideoId': [relatedToVideoId],
+      if (relevanceLanguage != null) 'relevanceLanguage': [relevanceLanguage],
+      if (safeSearch != null) 'safeSearch': [safeSearch],
+      if (topicId != null) 'topicId': [topicId],
+      if (type != null) 'type': type,
+      if (videoCaption != null) 'videoCaption': [videoCaption],
+      if (videoCategoryId != null) 'videoCategoryId': [videoCategoryId],
+      if (videoDefinition != null) 'videoDefinition': [videoDefinition],
+      if (videoDimension != null) 'videoDimension': [videoDimension],
+      if (videoDuration != null) 'videoDuration': [videoDuration],
+      if (videoEmbeddable != null) 'videoEmbeddable': [videoEmbeddable],
+      if (videoLicense != null) 'videoLicense': [videoLicense],
+      if (videoSyndicated != null) 'videoSyndicated': [videoSyndicated],
+      if (videoType != null) 'videoType': [videoType],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/search';
 
@@ -4469,14 +4118,13 @@
     core.String id, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/subscriptions';
 
@@ -4515,14 +4163,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/subscriptions';
 
@@ -4629,49 +4276,27 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (channelId != null) {
-      _queryParams['channelId'] = [channelId];
-    }
-    if (forChannelId != null) {
-      _queryParams['forChannelId'] = [forChannelId];
-    }
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (mine != null) {
-      _queryParams['mine'] = ['${mine}'];
-    }
-    if (myRecentSubscribers != null) {
-      _queryParams['myRecentSubscribers'] = ['${myRecentSubscribers}'];
-    }
-    if (mySubscribers != null) {
-      _queryParams['mySubscribers'] = ['${mySubscribers}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if (order != null) {
-      _queryParams['order'] = [order];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (channelId != null) 'channelId': [channelId],
+      if (forChannelId != null) 'forChannelId': [forChannelId],
+      if (id != null) 'id': id,
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (mine != null) 'mine': ['${mine}'],
+      if (myRecentSubscribers != null)
+        'myRecentSubscribers': ['${myRecentSubscribers}'],
+      if (mySubscribers != null) 'mySubscribers': ['${mySubscribers}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if (order != null) 'order': [order],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/subscriptions';
 
@@ -4724,23 +4349,16 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (hl != null) 'hl': [hl],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/superChatEvents';
 
@@ -4784,14 +4402,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/tests';
 
@@ -4839,21 +4456,18 @@
     core.List<core.String> part,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (linkingToken == null) {
       throw core.ArgumentError('Parameter linkingToken is required.');
     }
-    _queryParams['linkingToken'] = [linkingToken];
     if (type == null) {
       throw core.ArgumentError('Parameter type is required.');
     }
-    _queryParams['type'] = [type];
-    if (part != null) {
-      _queryParams['part'] = part;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'linkingToken': [linkingToken],
+      'type': [type],
+      if (part != null) 'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/thirdPartyLinks';
 
@@ -4892,14 +4506,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/thirdPartyLinks';
 
@@ -4946,20 +4559,15 @@
     core.String type,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (linkingToken != null) {
-      _queryParams['linkingToken'] = [linkingToken];
-    }
-    if (type != null) {
-      _queryParams['type'] = [type];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (linkingToken != null) 'linkingToken': [linkingToken],
+      if (type != null) 'type': [type],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/thirdPartyLinks';
 
@@ -4999,14 +4607,13 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/thirdPartyLinks';
 
@@ -5069,17 +4676,15 @@
     commons.UploadOptions uploadOptions = commons.UploadOptions.Default,
     commons.Media uploadMedia,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (videoId == null) {
       throw core.ArgumentError('Parameter videoId is required.');
     }
-    _queryParams['videoId'] = [videoId];
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'videoId': [videoId],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -5132,17 +4737,14 @@
     core.String hl,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (hl != null) 'hl': [hl],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/videoAbuseReportReasons';
 
@@ -5193,23 +4795,16 @@
     core.String regionCode,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (regionCode != null) {
-      _queryParams['regionCode'] = [regionCode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (hl != null) 'hl': [hl],
+      if (id != null) 'id': id,
+      if (regionCode != null) 'regionCode': [regionCode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/videoCategories';
 
@@ -5258,17 +4853,15 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/videos';
 
@@ -5313,17 +4906,15 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null || id.isEmpty) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = id;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': id,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/videos/getRating';
 
@@ -5416,31 +5007,21 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (autoLevels != null) {
-      _queryParams['autoLevels'] = ['${autoLevels}'];
-    }
-    if (notifySubscribers != null) {
-      _queryParams['notifySubscribers'] = ['${notifySubscribers}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (onBehalfOfContentOwnerChannel != null) {
-      _queryParams['onBehalfOfContentOwnerChannel'] = [
-        onBehalfOfContentOwnerChannel
-      ];
-    }
-    if (stabilize != null) {
-      _queryParams['stabilize'] = ['${stabilize}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (autoLevels != null) 'autoLevels': ['${autoLevels}'],
+      if (notifySubscribers != null)
+        'notifySubscribers': ['${notifySubscribers}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (onBehalfOfContentOwnerChannel != null)
+        'onBehalfOfContentOwnerChannel': [onBehalfOfContentOwnerChannel],
+      if (stabilize != null) 'stabilize': ['${stabilize}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -5558,50 +5139,26 @@
     core.String videoCategoryId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (chart != null) {
-      _queryParams['chart'] = [chart];
-    }
-    if (hl != null) {
-      _queryParams['hl'] = [hl];
-    }
-    if (id != null) {
-      _queryParams['id'] = id;
-    }
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if (maxHeight != null) {
-      _queryParams['maxHeight'] = ['${maxHeight}'];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (maxWidth != null) {
-      _queryParams['maxWidth'] = ['${maxWidth}'];
-    }
-    if (myRating != null) {
-      _queryParams['myRating'] = [myRating];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (regionCode != null) {
-      _queryParams['regionCode'] = [regionCode];
-    }
-    if (videoCategoryId != null) {
-      _queryParams['videoCategoryId'] = [videoCategoryId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (chart != null) 'chart': [chart],
+      if (hl != null) 'hl': [hl],
+      if (id != null) 'id': id,
+      if (locale != null) 'locale': [locale],
+      if (maxHeight != null) 'maxHeight': ['${maxHeight}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (maxWidth != null) 'maxWidth': ['${maxWidth}'],
+      if (myRating != null) 'myRating': [myRating],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (regionCode != null) 'regionCode': [regionCode],
+      if (videoCategoryId != null) 'videoCategoryId': [videoCategoryId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/videos';
 
@@ -5639,18 +5196,17 @@
     core.String rating, {
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    _queryParams['id'] = [id];
     if (rating == null) {
       throw core.ArgumentError('Parameter rating is required.');
     }
-    _queryParams['rating'] = [rating];
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'id': [id],
+      'rating': [rating],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/videos/rate';
 
@@ -5694,13 +5250,11 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/videos/reportAbuse';
 
@@ -5766,17 +5320,15 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (part == null || part.isEmpty) {
       throw core.ArgumentError('Parameter part is required.');
     }
-    _queryParams['part'] = part;
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'part': part,
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/videos';
 
@@ -5838,17 +5390,15 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    _queryParams['channelId'] = [channelId];
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'channelId': [channelId],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     core.String _url;
     if (uploadMedia == null) {
@@ -5900,17 +5450,15 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
     if (channelId == null) {
       throw core.ArgumentError('Parameter channelId is required.');
     }
-    _queryParams['channelId'] = [channelId];
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      'channelId': [channelId],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'youtube/v3/watermarks/unset';
 
diff --git a/generated/googleapis/lib/youtubeanalytics/v2.dart b/generated/googleapis/lib/youtubeanalytics/v2.dart
index a180871..4243817 100644
--- a/generated/googleapis/lib/youtubeanalytics/v2.dart
+++ b/generated/googleapis/lib/youtubeanalytics/v2.dart
@@ -112,16 +112,12 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (id != null) {
-      _queryParams['id'] = [id];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (id != null) 'id': [id],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/groupItems';
 
@@ -168,13 +164,11 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/groupItems';
 
@@ -220,16 +214,12 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (groupId != null) {
-      _queryParams['groupId'] = [groupId];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (groupId != null) 'groupId': [groupId],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/groupItems';
 
@@ -281,16 +271,12 @@
     core.String onBehalfOfContentOwner,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (id != null) {
-      _queryParams['id'] = [id];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (id != null) 'id': [id],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/groups';
 
@@ -337,13 +323,11 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/groups';
 
@@ -406,22 +390,14 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (id != null) {
-      _queryParams['id'] = [id];
-    }
-    if (mine != null) {
-      _queryParams['mine'] = ['${mine}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (id != null) 'id': [id],
+      if (mine != null) 'mine': ['${mine}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/groups';
 
@@ -470,13 +446,11 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/groups';
 
@@ -585,45 +559,21 @@
     core.int startIndex,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (currency != null) {
-      _queryParams['currency'] = [currency];
-    }
-    if (dimensions != null) {
-      _queryParams['dimensions'] = [dimensions];
-    }
-    if (endDate != null) {
-      _queryParams['endDate'] = [endDate];
-    }
-    if (filters != null) {
-      _queryParams['filters'] = [filters];
-    }
-    if (ids != null) {
-      _queryParams['ids'] = [ids];
-    }
-    if (includeHistoricalChannelData != null) {
-      _queryParams['includeHistoricalChannelData'] = [
-        '${includeHistoricalChannelData}'
-      ];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (metrics != null) {
-      _queryParams['metrics'] = [metrics];
-    }
-    if (sort != null) {
-      _queryParams['sort'] = [sort];
-    }
-    if (startDate != null) {
-      _queryParams['startDate'] = [startDate];
-    }
-    if (startIndex != null) {
-      _queryParams['startIndex'] = ['${startIndex}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (currency != null) 'currency': [currency],
+      if (dimensions != null) 'dimensions': [dimensions],
+      if (endDate != null) 'endDate': [endDate],
+      if (filters != null) 'filters': [filters],
+      if (ids != null) 'ids': [ids],
+      if (includeHistoricalChannelData != null)
+        'includeHistoricalChannelData': ['${includeHistoricalChannelData}'],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (metrics != null) 'metrics': [metrics],
+      if (sort != null) 'sort': [sort],
+      if (startDate != null) 'startDate': [startDate],
+      if (startIndex != null) 'startIndex': ['${startIndex}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v2/reports';
 
diff --git a/generated/googleapis/lib/youtubereporting/v1.dart b/generated/googleapis/lib/youtubereporting/v1.dart
index 9641223..0466b6b 100644
--- a/generated/googleapis/lib/youtubereporting/v1.dart
+++ b/generated/googleapis/lib/youtubereporting/v1.dart
@@ -109,13 +109,11 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/jobs';
 
@@ -156,13 +154,11 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/jobs/' + commons.Escaper.ecapeVariable('$jobId');
 
@@ -202,13 +198,11 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/jobs/' + commons.Escaper.ecapeVariable('$jobId');
 
@@ -257,22 +251,15 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeSystemManaged != null) {
-      _queryParams['includeSystemManaged'] = ['${includeSystemManaged}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeSystemManaged != null)
+        'includeSystemManaged': ['${includeSystemManaged}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/jobs';
 
@@ -325,13 +312,11 @@
     if (reportId == null) {
       throw core.ArgumentError('Parameter reportId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1/jobs/' +
         commons.Escaper.ecapeVariable('$jobId') +
@@ -398,28 +383,17 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (createdAfter != null) {
-      _queryParams['createdAfter'] = [createdAfter];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startTimeAtOrAfter != null) {
-      _queryParams['startTimeAtOrAfter'] = [startTimeAtOrAfter];
-    }
-    if (startTimeBefore != null) {
-      _queryParams['startTimeBefore'] = [startTimeBefore];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (createdAfter != null) 'createdAfter': [createdAfter],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startTimeAtOrAfter != null)
+        'startTimeAtOrAfter': [startTimeAtOrAfter],
+      if (startTimeBefore != null) 'startTimeBefore': [startTimeBefore],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/jobs/' + commons.Escaper.ecapeVariable('$jobId') + '/reports';
@@ -474,10 +448,9 @@
     if (resourceName == null) {
       throw core.ArgumentError('Parameter resourceName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1/media/' + commons.Escaper.ecapeVariableReserved('$resourceName');
@@ -540,22 +513,15 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (includeSystemManaged != null) {
-      _queryParams['includeSystemManaged'] = ['${includeSystemManaged}'];
-    }
-    if (onBehalfOfContentOwner != null) {
-      _queryParams['onBehalfOfContentOwner'] = [onBehalfOfContentOwner];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (includeSystemManaged != null)
+        'includeSystemManaged': ['${includeSystemManaged}'],
+      if (onBehalfOfContentOwner != null)
+        'onBehalfOfContentOwner': [onBehalfOfContentOwner],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1/reportTypes';
 
diff --git a/generated/googleapis_beta/lib/adexchangebuyer2/v2beta1.dart b/generated/googleapis_beta/lib/adexchangebuyer2/v2beta1.dart
index 1efda3f..77886b7 100644
--- a/generated/googleapis_beta/lib/adexchangebuyer2/v2beta1.dart
+++ b/generated/googleapis_beta/lib/adexchangebuyer2/v2beta1.dart
@@ -150,10 +150,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -199,10 +198,9 @@
     if (clientAccountId == null) {
       throw core.ArgumentError('Parameter clientAccountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -255,19 +253,12 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (partnerClientId != null) {
-      _queryParams['partnerClientId'] = [partnerClientId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (partnerClientId != null) 'partnerClientId': [partnerClientId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -319,10 +310,9 @@
     if (clientAccountId == null) {
       throw core.ArgumentError('Parameter clientAccountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -382,10 +372,9 @@
     if (clientAccountId == null) {
       throw core.ArgumentError('Parameter clientAccountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -441,10 +430,9 @@
     if (invitationId == null) {
       throw core.ArgumentError('Parameter invitationId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -506,16 +494,11 @@
     if (clientAccountId == null) {
       throw core.ArgumentError('Parameter clientAccountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -576,10 +559,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -640,16 +622,11 @@
     if (clientAccountId == null) {
       throw core.ArgumentError('Parameter clientAccountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -710,10 +687,9 @@
     if (userId == null) {
       throw core.ArgumentError('Parameter userId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -783,13 +759,10 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (duplicateIdMode != null) {
-      _queryParams['duplicateIdMode'] = [duplicateIdMode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (duplicateIdMode != null) 'duplicateIdMode': [duplicateIdMode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -833,10 +806,9 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -898,19 +870,12 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -963,10 +928,9 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1019,10 +983,9 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1078,10 +1041,9 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1139,10 +1101,9 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1209,19 +1170,12 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1272,10 +1226,9 @@
     if (creativeId == null) {
       throw core.ArgumentError('Parameter creativeId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1350,22 +1303,13 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (filterSyntax != null) {
-      _queryParams['filterSyntax'] = [filterSyntax];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (filterSyntax != null) 'filterSyntax': [filterSyntax],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1415,10 +1359,9 @@
     if (productId == null) {
       throw core.ArgumentError('Parameter productId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1470,19 +1413,12 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1543,10 +1479,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1600,10 +1535,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1657,10 +1591,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1717,10 +1650,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1768,10 +1700,9 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1817,10 +1748,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1890,22 +1820,13 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (filterSyntax != null) {
-      _queryParams['filterSyntax'] = [filterSyntax];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (filterSyntax != null) 'filterSyntax': [filterSyntax],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -1960,10 +1881,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2021,10 +1941,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2085,10 +2004,9 @@
     if (proposalId == null) {
       throw core.ArgumentError('Parameter proposalId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2140,10 +2058,9 @@
     if (publisherProfileId == null) {
       throw core.ArgumentError('Parameter publisherProfileId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2188,16 +2105,11 @@
     if (accountId == null) {
       throw core.ArgumentError('Parameter accountId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/accounts/' +
         commons.Escaper.ecapeVariable('$accountId') +
@@ -2298,13 +2210,10 @@
     if (ownerName == null) {
       throw core.ArgumentError('Parameter ownerName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (isTransient != null) {
-      _queryParams['isTransient'] = ['${isTransient}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (isTransient != null) 'isTransient': ['${isTransient}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$ownerName') +
@@ -2350,10 +2259,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2396,10 +2304,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2450,16 +2357,11 @@
     if (ownerName == null) {
       throw core.ArgumentError('Parameter ownerName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$ownerName') +
@@ -2522,16 +2424,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -2596,16 +2493,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -2671,16 +2563,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -2745,16 +2632,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -2823,16 +2705,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -2905,16 +2782,11 @@
     if (creativeStatusId == null) {
       throw core.ArgumentError('Parameter creativeStatusId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -2991,16 +2863,11 @@
     if (creativeStatusId == null) {
       throw core.ArgumentError('Parameter creativeStatusId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3066,16 +2933,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3139,16 +3001,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3213,16 +3070,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3301,13 +3153,10 @@
     if (ownerName == null) {
       throw core.ArgumentError('Parameter ownerName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (isTransient != null) {
-      _queryParams['isTransient'] = ['${isTransient}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (isTransient != null) 'isTransient': ['${isTransient}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$ownerName') +
@@ -3352,10 +3201,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3397,10 +3245,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3451,16 +3298,11 @@
     if (ownerName == null) {
       throw core.ArgumentError('Parameter ownerName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$ownerName') +
@@ -3522,16 +3364,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3594,16 +3431,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3667,16 +3499,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3739,16 +3566,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3816,16 +3638,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3896,16 +3713,11 @@
     if (creativeStatusId == null) {
       throw core.ArgumentError('Parameter creativeStatusId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -3980,16 +3792,11 @@
     if (creativeStatusId == null) {
       throw core.ArgumentError('Parameter creativeStatusId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -4053,16 +3860,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -4125,16 +3927,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
@@ -4197,16 +3994,11 @@
     if (filterSetName == null) {
       throw core.ArgumentError('Parameter filterSetName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta1/' +
         commons.Escaper.ecapeVariableReserved('$filterSetName') +
diff --git a/generated/googleapis_beta/lib/alertcenter/v1beta1.dart b/generated/googleapis_beta/lib/alertcenter/v1beta1.dart
index 756d917..3ef808c 100644
--- a/generated/googleapis_beta/lib/alertcenter/v1beta1.dart
+++ b/generated/googleapis_beta/lib/alertcenter/v1beta1.dart
@@ -86,10 +86,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1beta1/alerts:batchDelete';
 
@@ -125,10 +124,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1beta1/alerts:batchUndelete';
 
@@ -175,13 +173,10 @@
     if (alertId == null) {
       throw core.ArgumentError('Parameter alertId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/alerts/' + commons.Escaper.ecapeVariable('$alertId');
 
@@ -223,13 +218,10 @@
     if (alertId == null) {
       throw core.ArgumentError('Parameter alertId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/alerts/' + commons.Escaper.ecapeVariable('$alertId');
 
@@ -273,13 +265,10 @@
     if (alertId == null) {
       throw core.ArgumentError('Parameter alertId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/alerts/' +
         commons.Escaper.ecapeVariable('$alertId') +
@@ -340,25 +329,14 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1beta1/alerts';
 
@@ -405,10 +383,9 @@
     if (alertId == null) {
       throw core.ArgumentError('Parameter alertId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/alerts/' +
         commons.Escaper.ecapeVariable('$alertId') +
@@ -467,13 +444,10 @@
     if (alertId == null) {
       throw core.ArgumentError('Parameter alertId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/alerts/' +
         commons.Escaper.ecapeVariable('$alertId') +
@@ -528,16 +502,11 @@
     if (alertId == null) {
       throw core.ArgumentError('Parameter alertId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if (filter != null) 'filter': [filter],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/alerts/' +
         commons.Escaper.ecapeVariable('$alertId') +
@@ -580,13 +549,10 @@
     core.String customerId,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1beta1/settings';
 
@@ -625,13 +591,10 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (customerId != null) {
-      _queryParams['customerId'] = [customerId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (customerId != null) 'customerId': [customerId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1beta1/settings';
 
diff --git a/generated/googleapis_beta/lib/analyticsadmin/v1alpha.dart b/generated/googleapis_beta/lib/analyticsadmin/v1alpha.dart
index b964fcc..5b8a8bd 100644
--- a/generated/googleapis_beta/lib/analyticsadmin/v1alpha.dart
+++ b/generated/googleapis_beta/lib/analyticsadmin/v1alpha.dart
@@ -111,16 +111,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha/accountSummaries';
 
@@ -174,10 +169,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -215,10 +209,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -260,10 +253,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -314,19 +306,12 @@
     core.bool showDeleted,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha/accounts';
 
@@ -374,13 +359,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -418,10 +400,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha/accounts:provisionAccountTicket';
 
@@ -478,10 +459,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -534,10 +514,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -584,10 +563,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -634,13 +612,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (names != null) {
-      _queryParams['names'] = names;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (names != null) 'names': names,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -688,10 +663,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -744,13 +718,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (notifyNewUser != null) {
-      _queryParams['notifyNewUser'] = ['${notifyNewUser}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (notifyNewUser != null) 'notifyNewUser': ['${notifyNewUser}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -790,10 +761,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -830,10 +800,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -882,16 +851,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -935,10 +899,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -993,10 +956,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha/properties';
 
@@ -1042,10 +1004,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1083,10 +1044,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1148,22 +1108,13 @@
     core.bool showDeleted,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (showDeleted != null) {
-      _queryParams['showDeleted'] = ['${showDeleted}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (showDeleted != null) 'showDeleted': ['${showDeleted}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha/properties';
 
@@ -1211,13 +1162,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1274,10 +1222,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1320,10 +1267,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1363,10 +1309,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1421,16 +1366,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1482,13 +1422,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1541,10 +1478,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1586,10 +1522,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1641,16 +1576,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1699,13 +1629,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1755,10 +1682,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1798,10 +1724,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1849,16 +1774,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1909,13 +1829,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1972,10 +1889,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2017,10 +1933,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2059,10 +1974,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2115,16 +2029,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2175,13 +2084,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2239,10 +2145,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2295,10 +2200,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2345,10 +2249,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2395,13 +2298,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (names != null) {
-      _queryParams['names'] = names;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (names != null) 'names': names,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2449,10 +2349,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2505,13 +2404,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (notifyNewUser != null) {
-      _queryParams['notifyNewUser'] = ['${notifyNewUser}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (notifyNewUser != null) 'notifyNewUser': ['${notifyNewUser}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2551,10 +2447,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2591,10 +2486,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2643,16 +2537,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2696,10 +2585,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2750,10 +2638,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2795,10 +2682,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2837,10 +2723,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2884,10 +2769,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2930,10 +2814,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2985,16 +2868,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3045,13 +2923,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3106,13 +2981,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis_beta/lib/analyticsdata/v1alpha.dart b/generated/googleapis_beta/lib/analyticsdata/v1alpha.dart
index f996568..4b5f1b2 100644
--- a/generated/googleapis_beta/lib/analyticsdata/v1alpha.dart
+++ b/generated/googleapis_beta/lib/analyticsdata/v1alpha.dart
@@ -104,10 +104,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -154,10 +153,9 @@
     if (property == null) {
       throw core.ArgumentError('Parameter property is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha/' +
         commons.Escaper.ecapeVariableReserved('$property') +
@@ -203,10 +201,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha:batchRunPivotReports';
 
@@ -244,10 +241,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha:batchRunReports';
 
@@ -288,10 +284,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha:runPivotReport';
 
@@ -334,10 +329,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha:runReport';
 
diff --git a/generated/googleapis_beta/lib/area120tables/v1alpha1.dart b/generated/googleapis_beta/lib/area120tables/v1alpha1.dart
index b62dd67..d739174 100644
--- a/generated/googleapis_beta/lib/area120tables/v1alpha1.dart
+++ b/generated/googleapis_beta/lib/area120tables/v1alpha1.dart
@@ -107,10 +107,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -150,16 +149,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/tables';
 
@@ -208,10 +202,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -257,10 +250,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -305,10 +297,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -362,13 +353,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -408,10 +396,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -458,13 +445,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -521,19 +505,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -589,16 +566,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -644,10 +616,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -687,16 +658,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/workspaces';
 
diff --git a/generated/googleapis_beta/lib/bigqueryconnection/v1beta1.dart b/generated/googleapis_beta/lib/bigqueryconnection/v1beta1.dart
index 38794b4..c649cbc 100644
--- a/generated/googleapis_beta/lib/bigqueryconnection/v1beta1.dart
+++ b/generated/googleapis_beta/lib/bigqueryconnection/v1beta1.dart
@@ -118,13 +118,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (connectionId != null) {
-      _queryParams['connectionId'] = [connectionId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (connectionId != null) 'connectionId': [connectionId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -166,10 +163,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -207,10 +203,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -258,10 +253,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -307,16 +301,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -369,13 +358,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -424,10 +410,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -479,10 +464,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -529,10 +513,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis_beta/lib/clouderrorreporting/v1beta1.dart b/generated/googleapis_beta/lib/clouderrorreporting/v1beta1.dart
index a8ff306..f044e82 100644
--- a/generated/googleapis_beta/lib/clouderrorreporting/v1beta1.dart
+++ b/generated/googleapis_beta/lib/clouderrorreporting/v1beta1.dart
@@ -98,10 +98,9 @@
     if (projectName == null) {
       throw core.ArgumentError('Parameter projectName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$projectName') +
@@ -187,31 +186,19 @@
     if (projectName == null) {
       throw core.ArgumentError('Parameter projectName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (groupId != null) {
-      _queryParams['groupId'] = [groupId];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (serviceFilter_resourceType != null) {
-      _queryParams['serviceFilter.resourceType'] = [serviceFilter_resourceType];
-    }
-    if (serviceFilter_service != null) {
-      _queryParams['serviceFilter.service'] = [serviceFilter_service];
-    }
-    if (serviceFilter_version != null) {
-      _queryParams['serviceFilter.version'] = [serviceFilter_version];
-    }
-    if (timeRange_period != null) {
-      _queryParams['timeRange.period'] = [timeRange_period];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (groupId != null) 'groupId': [groupId],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (serviceFilter_resourceType != null)
+        'serviceFilter.resourceType': [serviceFilter_resourceType],
+      if (serviceFilter_service != null)
+        'serviceFilter.service': [serviceFilter_service],
+      if (serviceFilter_version != null)
+        'serviceFilter.version': [serviceFilter_version],
+      if (timeRange_period != null) 'timeRange.period': [timeRange_period],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$projectName') +
@@ -264,10 +251,9 @@
     if (projectName == null) {
       throw core.ArgumentError('Parameter projectName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$projectName') +
@@ -394,43 +380,24 @@
     if (projectName == null) {
       throw core.ArgumentError('Parameter projectName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (alignment != null) {
-      _queryParams['alignment'] = [alignment];
-    }
-    if (alignmentTime != null) {
-      _queryParams['alignmentTime'] = [alignmentTime];
-    }
-    if (groupId != null) {
-      _queryParams['groupId'] = groupId;
-    }
-    if (order != null) {
-      _queryParams['order'] = [order];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (serviceFilter_resourceType != null) {
-      _queryParams['serviceFilter.resourceType'] = [serviceFilter_resourceType];
-    }
-    if (serviceFilter_service != null) {
-      _queryParams['serviceFilter.service'] = [serviceFilter_service];
-    }
-    if (serviceFilter_version != null) {
-      _queryParams['serviceFilter.version'] = [serviceFilter_version];
-    }
-    if (timeRange_period != null) {
-      _queryParams['timeRange.period'] = [timeRange_period];
-    }
-    if (timedCountDuration != null) {
-      _queryParams['timedCountDuration'] = [timedCountDuration];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (alignment != null) 'alignment': [alignment],
+      if (alignmentTime != null) 'alignmentTime': [alignmentTime],
+      if (groupId != null) 'groupId': groupId,
+      if (order != null) 'order': [order],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (serviceFilter_resourceType != null)
+        'serviceFilter.resourceType': [serviceFilter_resourceType],
+      if (serviceFilter_service != null)
+        'serviceFilter.service': [serviceFilter_service],
+      if (serviceFilter_version != null)
+        'serviceFilter.version': [serviceFilter_version],
+      if (timeRange_period != null) 'timeRange.period': [timeRange_period],
+      if (timedCountDuration != null)
+        'timedCountDuration': [timedCountDuration],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$projectName') +
@@ -479,10 +446,9 @@
     if (groupName == null) {
       throw core.ArgumentError('Parameter groupName is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$groupName');
@@ -528,10 +494,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis_beta/lib/containeranalysis/v1beta1.dart b/generated/googleapis_beta/lib/containeranalysis/v1beta1.dart
index fd3a238..fe3a645 100644
--- a/generated/googleapis_beta/lib/containeranalysis/v1beta1.dart
+++ b/generated/googleapis_beta/lib/containeranalysis/v1beta1.dart
@@ -111,10 +111,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -163,13 +162,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (noteId != null) {
-      _queryParams['noteId'] = [noteId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (noteId != null) 'noteId': [noteId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -209,10 +205,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -249,10 +244,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -301,10 +295,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -354,19 +347,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -414,13 +400,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -470,10 +453,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -525,10 +507,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -588,19 +569,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -652,10 +626,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -701,10 +674,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -748,10 +720,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -788,10 +759,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -841,10 +811,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -887,10 +856,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + '/notes';
@@ -931,13 +899,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -988,19 +953,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1048,13 +1006,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1105,10 +1060,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1160,10 +1114,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1211,10 +1164,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1261,19 +1213,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1318,10 +1263,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis_beta/lib/datacatalog/v1beta1.dart b/generated/googleapis_beta/lib/datacatalog/v1beta1.dart
index c60aec1..1445ece 100644
--- a/generated/googleapis_beta/lib/datacatalog/v1beta1.dart
+++ b/generated/googleapis_beta/lib/datacatalog/v1beta1.dart
@@ -109,10 +109,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1beta1/catalog:search';
 
@@ -170,16 +169,11 @@
     core.String sqlResource,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (linkedResource != null) {
-      _queryParams['linkedResource'] = [linkedResource];
-    }
-    if (sqlResource != null) {
-      _queryParams['sqlResource'] = [sqlResource];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (linkedResource != null) 'linkedResource': [linkedResource],
+      if (sqlResource != null) 'sqlResource': [sqlResource],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1beta1/entries:lookup';
 
@@ -269,13 +263,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (entryGroupId != null) {
-      _queryParams['entryGroupId'] = [entryGroupId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (entryGroupId != null) 'entryGroupId': [entryGroupId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -326,13 +317,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -374,13 +362,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (readMask != null) {
-      _queryParams['readMask'] = [readMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (readMask != null) 'readMask': [readMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -435,10 +420,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -487,16 +471,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -553,13 +532,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -614,10 +590,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -671,10 +646,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -744,13 +718,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (entryId != null) {
-      _queryParams['entryId'] = [entryId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (entryId != null) 'entryId': [entryId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -798,10 +769,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -839,10 +809,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -897,10 +866,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -956,19 +924,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (readMask != null) {
-      _queryParams['readMask'] = [readMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (readMask != null) 'readMask': [readMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1032,13 +993,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1091,10 +1049,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1157,10 +1114,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tags';
@@ -1201,10 +1157,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1252,16 +1207,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tags';
@@ -1313,13 +1263,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1380,10 +1327,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tags';
@@ -1424,10 +1370,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1475,16 +1420,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/tags';
@@ -1536,13 +1476,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1605,13 +1542,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (tagTemplateId != null) {
-      _queryParams['tagTemplateId'] = [tagTemplateId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (tagTemplateId != null) 'tagTemplateId': [tagTemplateId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1663,13 +1597,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1707,10 +1638,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1765,10 +1695,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1829,13 +1758,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1890,10 +1816,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1947,10 +1872,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2021,13 +1945,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (tagTemplateFieldId != null) {
-      _queryParams['tagTemplateFieldId'] = [tagTemplateFieldId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (tagTemplateFieldId != null)
+        'tagTemplateFieldId': [tagTemplateFieldId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2080,13 +2002,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2145,13 +2064,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2201,10 +2117,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':rename';
@@ -2262,10 +2177,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':rename';
@@ -2320,10 +2234,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2368,10 +2281,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2417,16 +2329,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (serializedTaxonomies != null) {
-      _queryParams['serializedTaxonomies'] = ['${serializedTaxonomies}'];
-    }
-    if (taxonomies != null) {
-      _queryParams['taxonomies'] = taxonomies;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (serializedTaxonomies != null)
+        'serializedTaxonomies': ['${serializedTaxonomies}'],
+      if (taxonomies != null) 'taxonomies': taxonomies,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2466,10 +2374,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2514,10 +2421,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2566,10 +2472,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2619,16 +2524,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2680,13 +2580,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2732,10 +2629,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2783,10 +2679,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2840,10 +2735,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2887,10 +2781,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2927,10 +2820,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2975,10 +2867,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3027,16 +2918,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3091,13 +2977,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3143,10 +3026,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -3194,10 +3076,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
diff --git a/generated/googleapis_beta/lib/dataflow/v1b3.dart b/generated/googleapis_beta/lib/dataflow/v1b3.dart
index 27dacbc..c677a70 100644
--- a/generated/googleapis_beta/lib/dataflow/v1b3.dart
+++ b/generated/googleapis_beta/lib/dataflow/v1b3.dart
@@ -132,16 +132,11 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (snapshotId != null) {
-      _queryParams['snapshotId'] = [snapshotId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (location != null) 'location': [location],
+      if (snapshotId != null) 'snapshotId': [snapshotId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -184,10 +179,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -247,10 +241,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1b3/' + commons.Escaper.ecapeVariableReserved('$name') + ':commit';
@@ -293,10 +286,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -340,10 +332,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -390,10 +381,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1b3/' + commons.Escaper.ecapeVariableReserved('$name') + ':label';
@@ -444,10 +434,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1b3/' + commons.Escaper.ecapeVariableReserved('$name') + ':tag';
@@ -503,10 +492,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -598,25 +586,14 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (location != null) 'location': [location],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -687,19 +664,12 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (replaceJobId != null) {
-      _queryParams['replaceJobId'] = [replaceJobId];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (location != null) 'location': [location],
+      if (replaceJobId != null) 'replaceJobId': [replaceJobId],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -768,16 +738,11 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (location != null) 'location': [location],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -836,16 +801,11 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (location != null) 'location': [location],
+      if (startTime != null) 'startTime': [startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -933,25 +893,14 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (location != null) 'location': [location],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1000,10 +949,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1066,13 +1014,10 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (location != null) 'location': [location],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1130,10 +1075,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1185,10 +1129,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1299,28 +1242,15 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endTime != null) {
-      _queryParams['endTime'] = [endTime];
-    }
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (minimumImportance != null) {
-      _queryParams['minimumImportance'] = [minimumImportance];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endTime != null) 'endTime': [endTime],
+      if (location != null) 'location': [location],
+      if (minimumImportance != null) 'minimumImportance': [minimumImportance],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startTime != null) 'startTime': [startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1378,10 +1308,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1433,10 +1362,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1507,10 +1435,9 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1572,10 +1499,9 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1670,16 +1596,11 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (replaceJobId != null) {
-      _queryParams['replaceJobId'] = [replaceJobId];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (replaceJobId != null) 'replaceJobId': [replaceJobId],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1753,13 +1674,10 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1825,16 +1743,11 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1900,13 +1813,10 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (startTime != null) 'startTime': [startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1999,22 +1909,13 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2071,10 +1972,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2142,10 +2042,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2214,10 +2113,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2279,10 +2177,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2398,25 +2295,14 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endTime != null) {
-      _queryParams['endTime'] = [endTime];
-    }
-    if (minimumImportance != null) {
-      _queryParams['minimumImportance'] = [minimumImportance];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endTime != null) 'endTime': [endTime],
+      if (minimumImportance != null) 'minimumImportance': [minimumImportance],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startTime != null) 'startTime': [startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2477,10 +2363,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2568,22 +2453,13 @@
     if (stageId == null) {
       throw core.ArgumentError('Parameter stageId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (endTime != null) {
-      _queryParams['endTime'] = [endTime];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (startTime != null) {
-      _queryParams['startTime'] = [startTime];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (endTime != null) 'endTime': [endTime],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (startTime != null) 'startTime': [startTime],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2653,10 +2529,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2718,10 +2593,9 @@
     if (jobId == null) {
       throw core.ArgumentError('Parameter jobId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2784,10 +2658,9 @@
     if (snapshotId == null) {
       throw core.ArgumentError('Parameter snapshotId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2841,10 +2714,9 @@
     if (snapshotId == null) {
       throw core.ArgumentError('Parameter snapshotId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2893,13 +2765,10 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (jobId != null) {
-      _queryParams['jobId'] = [jobId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (jobId != null) 'jobId': [jobId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2962,13 +2831,10 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3029,10 +2895,9 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3091,16 +2956,11 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (gcsPath != null) {
-      _queryParams['gcsPath'] = [gcsPath];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (gcsPath != null) 'gcsPath': [gcsPath],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3170,24 +3030,15 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dynamicTemplate_gcsPath != null) {
-      _queryParams['dynamicTemplate.gcsPath'] = [dynamicTemplate_gcsPath];
-    }
-    if (dynamicTemplate_stagingLocation != null) {
-      _queryParams['dynamicTemplate.stagingLocation'] = [
-        dynamicTemplate_stagingLocation
-      ];
-    }
-    if (gcsPath != null) {
-      _queryParams['gcsPath'] = [gcsPath];
-    }
-    if (validateOnly != null) {
-      _queryParams['validateOnly'] = ['${validateOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dynamicTemplate_gcsPath != null)
+        'dynamicTemplate.gcsPath': [dynamicTemplate_gcsPath],
+      if (dynamicTemplate_stagingLocation != null)
+        'dynamicTemplate.stagingLocation': [dynamicTemplate_stagingLocation],
+      if (gcsPath != null) 'gcsPath': [gcsPath],
+      if (validateOnly != null) 'validateOnly': ['${validateOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3244,13 +3095,10 @@
     if (snapshotId == null) {
       throw core.ArgumentError('Parameter snapshotId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (location != null) 'location': [location],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3294,16 +3142,11 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (jobId != null) {
-      _queryParams['jobId'] = [jobId];
-    }
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (jobId != null) 'jobId': [jobId],
+      if (location != null) 'location': [location],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3362,16 +3205,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3421,10 +3259,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3478,19 +3315,12 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (gcsPath != null) {
-      _queryParams['gcsPath'] = [gcsPath];
-    }
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (gcsPath != null) 'gcsPath': [gcsPath],
+      if (location != null) 'location': [location],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -3555,27 +3385,16 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (dynamicTemplate_gcsPath != null) {
-      _queryParams['dynamicTemplate.gcsPath'] = [dynamicTemplate_gcsPath];
-    }
-    if (dynamicTemplate_stagingLocation != null) {
-      _queryParams['dynamicTemplate.stagingLocation'] = [
-        dynamicTemplate_stagingLocation
-      ];
-    }
-    if (gcsPath != null) {
-      _queryParams['gcsPath'] = [gcsPath];
-    }
-    if (location != null) {
-      _queryParams['location'] = [location];
-    }
-    if (validateOnly != null) {
-      _queryParams['validateOnly'] = ['${validateOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (dynamicTemplate_gcsPath != null)
+        'dynamicTemplate.gcsPath': [dynamicTemplate_gcsPath],
+      if (dynamicTemplate_stagingLocation != null)
+        'dynamicTemplate.stagingLocation': [dynamicTemplate_stagingLocation],
+      if (gcsPath != null) 'gcsPath': [gcsPath],
+      if (location != null) 'location': [location],
+      if (validateOnly != null) 'validateOnly': ['${validateOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1b3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
diff --git a/generated/googleapis_beta/lib/datalabeling/v1beta1.dart b/generated/googleapis_beta/lib/datalabeling/v1beta1.dart
index f6dde4b..f6dacde 100644
--- a/generated/googleapis_beta/lib/datalabeling/v1beta1.dart
+++ b/generated/googleapis_beta/lib/datalabeling/v1beta1.dart
@@ -125,10 +125,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -169,10 +168,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -210,10 +208,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -269,19 +266,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -347,10 +337,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -391,10 +380,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -437,10 +425,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -481,10 +468,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -532,10 +518,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -592,19 +577,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -661,10 +639,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -704,10 +681,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -763,19 +739,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -826,10 +795,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -884,19 +852,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -950,13 +911,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1012,19 +970,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1079,10 +1030,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1121,10 +1071,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1175,16 +1124,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1238,10 +1182,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1284,10 +1227,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1326,10 +1268,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1380,16 +1321,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1439,10 +1375,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1496,19 +1431,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1561,10 +1489,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1623,10 +1550,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1681,10 +1607,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1739,10 +1664,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1797,10 +1721,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1853,10 +1776,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1897,10 +1819,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1938,10 +1859,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2000,19 +1920,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2071,13 +1984,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2123,10 +2033,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':pause';
@@ -2174,10 +2083,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':resume';
@@ -2253,19 +2161,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2317,10 +2218,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2361,10 +2261,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2402,10 +2301,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2458,19 +2356,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2524,10 +2415,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -2569,10 +2459,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2612,10 +2501,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2670,19 +2558,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
diff --git a/generated/googleapis_beta/lib/datamigration/v1beta1.dart b/generated/googleapis_beta/lib/datamigration/v1beta1.dart
index d521a25..3b69173 100644
--- a/generated/googleapis_beta/lib/datamigration/v1beta1.dart
+++ b/generated/googleapis_beta/lib/datamigration/v1beta1.dart
@@ -104,10 +104,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -152,19 +151,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -226,16 +218,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (connectionProfileId != null) {
-      _queryParams['connectionProfileId'] = [connectionProfileId];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (connectionProfileId != null)
+        'connectionProfileId': [connectionProfileId],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -289,16 +277,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -335,10 +318,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -390,15 +372,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -464,22 +442,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -536,16 +505,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -593,10 +557,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -648,10 +611,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -714,16 +676,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (migrationJobId != null) {
-      _queryParams['migrationJobId'] = [migrationJobId];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (migrationJobId != null) 'migrationJobId': [migrationJobId],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -775,16 +732,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (force != null) {
-      _queryParams['force'] = ['${force}'];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (force != null) 'force': ['${force}'],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -828,10 +780,9 @@
     if (migrationJob == null) {
       throw core.ArgumentError('Parameter migrationJob is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$migrationJob') +
@@ -871,10 +822,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -926,15 +876,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1001,22 +947,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1073,16 +1010,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1126,10 +1058,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1176,10 +1107,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1225,10 +1155,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':resume';
@@ -1277,10 +1206,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1325,10 +1253,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':start';
@@ -1372,10 +1299,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':stop';
@@ -1426,10 +1352,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1476,10 +1401,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':verify';
@@ -1539,10 +1463,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1585,10 +1508,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1628,10 +1550,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1685,19 +1606,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
diff --git a/generated/googleapis_beta/lib/documentai/v1beta3.dart b/generated/googleapis_beta/lib/documentai/v1beta3.dart
index ae719f0..5696a4d 100644
--- a/generated/googleapis_beta/lib/documentai/v1beta3.dart
+++ b/generated/googleapis_beta/lib/documentai/v1beta3.dart
@@ -106,10 +106,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -155,19 +154,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -217,10 +209,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta3/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -279,10 +270,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -332,10 +322,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -392,10 +381,9 @@
     if (humanReviewConfig == null) {
       throw core.ArgumentError('Parameter humanReviewConfig is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta3/' +
         commons.Escaper.ecapeVariableReserved('$humanReviewConfig') +
@@ -453,10 +441,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -506,10 +493,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
diff --git a/generated/googleapis_beta/lib/domains/v1beta1.dart b/generated/googleapis_beta/lib/domains/v1beta1.dart
index 9727ee3..0f119e1 100644
--- a/generated/googleapis_beta/lib/domains/v1beta1.dart
+++ b/generated/googleapis_beta/lib/domains/v1beta1.dart
@@ -100,10 +100,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -148,19 +147,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -210,10 +202,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -267,19 +258,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -335,10 +319,9 @@
     if (registration == null) {
       throw core.ArgumentError('Parameter registration is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$registration') +
@@ -385,10 +368,9 @@
     if (registration == null) {
       throw core.ArgumentError('Parameter registration is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$registration') +
@@ -435,10 +417,9 @@
     if (registration == null) {
       throw core.ArgumentError('Parameter registration is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$registration') +
@@ -483,10 +464,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -540,10 +520,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':export';
@@ -583,10 +562,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -638,15 +616,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -706,19 +680,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -774,13 +741,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -833,10 +797,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -887,10 +850,9 @@
     if (registration == null) {
       throw core.ArgumentError('Parameter registration is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$registration') +
@@ -937,10 +899,9 @@
     if (registration == null) {
       throw core.ArgumentError('Parameter registration is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$registration') +
@@ -987,13 +948,10 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (domainName != null) {
-      _queryParams['domainName'] = [domainName];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (domainName != null) 'domainName': [domainName],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$location') +
@@ -1040,13 +998,10 @@
     if (location == null) {
       throw core.ArgumentError('Parameter location is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (query != null) 'query': [query],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$location') +
@@ -1096,10 +1051,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1151,10 +1105,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
diff --git a/generated/googleapis_beta/lib/factchecktools/v1alpha1.dart b/generated/googleapis_beta/lib/factchecktools/v1alpha1.dart
index f6108a9..e42c702 100644
--- a/generated/googleapis_beta/lib/factchecktools/v1alpha1.dart
+++ b/generated/googleapis_beta/lib/factchecktools/v1alpha1.dart
@@ -113,31 +113,17 @@
     core.String reviewPublisherSiteFilter,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (languageCode != null) {
-      _queryParams['languageCode'] = [languageCode];
-    }
-    if (maxAgeDays != null) {
-      _queryParams['maxAgeDays'] = ['${maxAgeDays}'];
-    }
-    if (offset != null) {
-      _queryParams['offset'] = ['${offset}'];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (query != null) {
-      _queryParams['query'] = [query];
-    }
-    if (reviewPublisherSiteFilter != null) {
-      _queryParams['reviewPublisherSiteFilter'] = [reviewPublisherSiteFilter];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (languageCode != null) 'languageCode': [languageCode],
+      if (maxAgeDays != null) 'maxAgeDays': ['${maxAgeDays}'],
+      if (offset != null) 'offset': ['${offset}'],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (query != null) 'query': [query],
+      if (reviewPublisherSiteFilter != null)
+        'reviewPublisherSiteFilter': [reviewPublisherSiteFilter],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/claims:search';
 
@@ -180,10 +166,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/pages';
 
@@ -222,10 +207,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -265,10 +249,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -329,25 +312,14 @@
     core.String url,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (offset != null) {
-      _queryParams['offset'] = ['${offset}'];
-    }
-    if (organization != null) {
-      _queryParams['organization'] = [organization];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (url != null) {
-      _queryParams['url'] = [url];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (offset != null) 'offset': ['${offset}'],
+      if (organization != null) 'organization': [organization],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (url != null) 'url': [url],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/pages';
 
@@ -398,10 +370,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis_beta/lib/firebase/v1beta1.dart b/generated/googleapis_beta/lib/firebase/v1beta1.dart
index f71ab98..6f8fab3 100644
--- a/generated/googleapis_beta/lib/firebase/v1beta1.dart
+++ b/generated/googleapis_beta/lib/firebase/v1beta1.dart
@@ -121,16 +121,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1beta1/availableProjects';
 
@@ -176,10 +171,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -267,10 +261,9 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$project') +
@@ -355,10 +348,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -400,10 +392,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -448,10 +439,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -495,10 +485,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -547,16 +536,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1beta1/projects';
 
@@ -612,13 +596,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -677,10 +658,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -758,19 +738,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -833,10 +806,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -880,10 +852,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -926,10 +897,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -983,16 +953,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1050,13 +1015,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1112,10 +1074,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sha';
@@ -1162,10 +1123,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1207,10 +1167,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/sha';
@@ -1288,16 +1247,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1380,10 +1334,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1441,10 +1394,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1488,10 +1440,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1532,10 +1483,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1589,16 +1539,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1656,13 +1601,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1718,10 +1660,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1765,10 +1706,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1809,10 +1749,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1866,16 +1805,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1933,13 +1867,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis_beta/lib/firebasedatabase/v1beta.dart b/generated/googleapis_beta/lib/firebasedatabase/v1beta.dart
index ee2a66b..dd5d633 100644
--- a/generated/googleapis_beta/lib/firebasedatabase/v1beta.dart
+++ b/generated/googleapis_beta/lib/firebasedatabase/v1beta.dart
@@ -139,16 +139,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (databaseId != null) {
-      _queryParams['databaseId'] = [databaseId];
-    }
-    if (validateOnly != null) {
-      _queryParams['validateOnly'] = ['${validateOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (databaseId != null) 'databaseId': [databaseId],
+      if (validateOnly != null) 'validateOnly': ['${validateOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -196,10 +191,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -248,10 +242,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta/' + commons.Escaper.ecapeVariableReserved('$name') + ':disable';
@@ -298,10 +291,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -358,16 +350,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -418,10 +405,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$name') +
diff --git a/generated/googleapis_beta/lib/lifesciences/v2beta.dart b/generated/googleapis_beta/lib/lifesciences/v2beta.dart
index 8f6bd6f..a212b95 100644
--- a/generated/googleapis_beta/lib/lifesciences/v2beta.dart
+++ b/generated/googleapis_beta/lib/lifesciences/v2beta.dart
@@ -102,10 +102,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -150,19 +149,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -221,10 +213,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v2beta/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -268,10 +259,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -329,19 +319,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -406,10 +389,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v2beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis_beta/lib/metastore/v1beta.dart b/generated/googleapis_beta/lib/metastore/v1beta.dart
index 3e68e88..cd9a907 100644
--- a/generated/googleapis_beta/lib/metastore/v1beta.dart
+++ b/generated/googleapis_beta/lib/metastore/v1beta.dart
@@ -103,10 +103,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -151,19 +150,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -214,10 +206,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -257,10 +248,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -314,19 +304,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -400,16 +383,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (serviceId != null) {
-      _queryParams['serviceId'] = [serviceId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (serviceId != null) 'serviceId': [serviceId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -462,13 +440,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -512,10 +487,9 @@
     if (service == null) {
       throw core.ArgumentError('Parameter service is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$service') +
@@ -557,10 +531,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -611,15 +584,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -681,22 +650,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -760,16 +720,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -817,10 +772,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -872,10 +826,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -948,16 +901,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (metadataImportId != null) {
-      _queryParams['metadataImportId'] = [metadataImportId];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (metadataImportId != null) 'metadataImportId': [metadataImportId],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -999,10 +947,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1064,22 +1011,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1145,16 +1083,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
diff --git a/generated/googleapis_beta/lib/networkconnectivity/v1alpha1.dart b/generated/googleapis_beta/lib/networkconnectivity/v1alpha1.dart
index b43f010..2dbd7c9 100644
--- a/generated/googleapis_beta/lib/networkconnectivity/v1alpha1.dart
+++ b/generated/googleapis_beta/lib/networkconnectivity/v1alpha1.dart
@@ -113,10 +113,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -161,19 +160,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -250,16 +242,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (hubId != null) {
-      _queryParams['hubId'] = [hubId];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (hubId != null) 'hubId': [hubId],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -313,13 +300,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -357,10 +341,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -411,15 +394,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -471,22 +450,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -551,16 +521,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -609,10 +574,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -664,10 +628,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -729,10 +692,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -776,10 +738,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -819,10 +780,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -877,19 +837,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -950,15 +903,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1007,10 +956,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1062,10 +1010,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1127,15 +1074,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1184,10 +1127,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1239,10 +1181,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1310,16 +1251,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (spokeId != null) {
-      _queryParams['spokeId'] = [spokeId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (spokeId != null) 'spokeId': [spokeId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1373,13 +1309,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1417,10 +1350,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1471,15 +1403,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1531,22 +1459,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1611,16 +1530,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1669,10 +1583,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1724,10 +1637,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
diff --git a/generated/googleapis_beta/lib/privateca/v1beta1.dart b/generated/googleapis_beta/lib/privateca/v1beta1.dart
index 802853d..bcdf8f7 100644
--- a/generated/googleapis_beta/lib/privateca/v1beta1.dart
+++ b/generated/googleapis_beta/lib/privateca/v1beta1.dart
@@ -113,10 +113,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -161,19 +160,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -240,10 +232,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -305,16 +296,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (certificateAuthorityId != null) {
-      _queryParams['certificateAuthorityId'] = [certificateAuthorityId];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (certificateAuthorityId != null)
+        'certificateAuthorityId': [certificateAuthorityId],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -360,10 +347,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -409,10 +395,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':enable';
@@ -457,10 +442,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':fetch';
@@ -499,10 +483,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -554,15 +537,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -619,22 +598,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -696,16 +666,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -749,10 +714,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -798,10 +762,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -851,10 +814,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -906,10 +868,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -958,10 +919,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1013,15 +973,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1080,22 +1036,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1158,16 +1105,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1215,10 +1157,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1270,10 +1211,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1349,16 +1289,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (certificateId != null) {
-      _queryParams['certificateId'] = [certificateId];
-    }
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (certificateId != null) 'certificateId': [certificateId],
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1399,10 +1334,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1462,22 +1396,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1542,16 +1467,11 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1597,10 +1517,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':revoke';
@@ -1661,10 +1580,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -1707,10 +1625,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1750,10 +1667,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1807,19 +1723,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1866,10 +1775,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1921,15 +1829,11 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (options_requestedPolicyVersion != null) {
-      _queryParams['options.requestedPolicyVersion'] = [
-        '${options_requestedPolicyVersion}'
-      ];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (options_requestedPolicyVersion != null)
+        'options.requestedPolicyVersion': ['${options_requestedPolicyVersion}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -1985,22 +1889,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2050,10 +1945,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
@@ -2105,10 +1999,9 @@
     if (resource == null) {
       throw core.ArgumentError('Parameter resource is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$resource') +
diff --git a/generated/googleapis_beta/lib/prod_tt_sasportal/v1alpha1.dart b/generated/googleapis_beta/lib/prod_tt_sasportal/v1alpha1.dart
index 4e86cea..8c83873 100644
--- a/generated/googleapis_beta/lib/prod_tt_sasportal/v1alpha1.dart
+++ b/generated/googleapis_beta/lib/prod_tt_sasportal/v1alpha1.dart
@@ -109,10 +109,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -149,16 +148,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/customers';
 
@@ -203,13 +197,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -263,10 +254,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -306,10 +296,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -346,10 +335,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -399,19 +387,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -455,10 +436,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -505,13 +485,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -561,10 +538,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -609,10 +585,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -666,19 +641,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -728,10 +696,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -776,10 +743,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -819,10 +785,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -859,10 +824,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -913,19 +877,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -969,10 +926,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -1019,13 +975,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1068,10 +1021,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1116,10 +1068,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1178,10 +1129,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1221,10 +1171,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1261,10 +1210,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1313,19 +1261,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1369,10 +1310,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -1419,13 +1359,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1476,10 +1413,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1532,19 +1468,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1595,10 +1524,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1643,10 +1571,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1700,19 +1627,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1764,10 +1684,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1819,19 +1738,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1879,10 +1791,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1925,10 +1836,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1965,10 +1875,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2010,10 +1919,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -2060,13 +1968,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2109,10 +2014,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2157,10 +2061,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2204,10 +2107,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/installer:generateSecret';
 
@@ -2243,10 +2145,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/installer:validate';
 
@@ -2295,10 +2196,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2344,10 +2244,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2384,10 +2283,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2437,19 +2335,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2493,10 +2384,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -2543,13 +2433,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2599,10 +2486,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2647,10 +2533,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2704,19 +2589,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2766,10 +2644,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2814,10 +2691,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2857,10 +2733,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2897,10 +2772,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2951,19 +2825,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3007,10 +2874,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -3057,13 +2923,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3106,10 +2969,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -3154,10 +3016,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -3215,10 +3076,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3258,10 +3118,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3298,10 +3157,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3350,19 +3208,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3406,10 +3257,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -3456,13 +3306,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3513,10 +3360,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3569,19 +3415,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3631,10 +3470,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3679,10 +3517,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3736,19 +3573,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3799,10 +3629,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3854,19 +3683,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3912,10 +3734,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/policies:get';
 
@@ -3953,10 +3774,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/policies:set';
 
@@ -3992,10 +3812,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/policies:test';
 
diff --git a/generated/googleapis_beta/lib/recommendationengine/v1beta1.dart b/generated/googleapis_beta/lib/recommendationengine/v1beta1.dart
index d7b5eb0..c8122a9 100644
--- a/generated/googleapis_beta/lib/recommendationengine/v1beta1.dart
+++ b/generated/googleapis_beta/lib/recommendationengine/v1beta1.dart
@@ -142,16 +142,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -202,13 +197,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -260,10 +252,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -306,10 +297,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -349,10 +339,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -403,10 +392,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -461,19 +449,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -526,13 +507,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -600,10 +578,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -659,19 +636,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -748,10 +718,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -810,10 +779,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -856,10 +824,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -909,16 +876,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -985,19 +947,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (ets != null) {
-      _queryParams['ets'] = [ets];
-    }
-    if (uri != null) {
-      _queryParams['uri'] = [uri];
-    }
-    if (userEvent != null) {
-      _queryParams['userEvent'] = [userEvent];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (ets != null) 'ets': [ets],
+      if (uri != null) 'uri': [uri],
+      if (userEvent != null) 'userEvent': [userEvent],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1049,10 +1004,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1134,19 +1088,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1197,10 +1144,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1255,10 +1201,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1305,10 +1250,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1359,10 +1303,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1418,19 +1361,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
diff --git a/generated/googleapis_beta/lib/sasportal/v1alpha1.dart b/generated/googleapis_beta/lib/sasportal/v1alpha1.dart
index dfcd0e9..56a2f85 100644
--- a/generated/googleapis_beta/lib/sasportal/v1alpha1.dart
+++ b/generated/googleapis_beta/lib/sasportal/v1alpha1.dart
@@ -109,10 +109,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -149,16 +148,11 @@
     core.String pageToken,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/customers';
 
@@ -203,13 +197,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -263,10 +254,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -306,10 +296,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -346,10 +335,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -399,19 +387,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -455,10 +436,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -505,13 +485,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -561,10 +538,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -609,10 +585,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -666,19 +641,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -728,10 +696,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -776,10 +743,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -819,10 +785,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -859,10 +824,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -913,19 +877,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -969,10 +926,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -1019,13 +975,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1068,10 +1021,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1116,10 +1068,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1178,10 +1129,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1221,10 +1171,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1261,10 +1210,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1313,19 +1261,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1369,10 +1310,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -1419,13 +1359,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1476,10 +1413,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1532,19 +1468,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1595,10 +1524,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1643,10 +1571,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1700,19 +1627,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1764,10 +1684,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1819,19 +1738,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -1879,10 +1791,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1925,10 +1836,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -1965,10 +1875,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2010,10 +1919,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -2060,13 +1968,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2109,10 +2014,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2157,10 +2061,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -2204,10 +2107,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/installer:generateSecret';
 
@@ -2243,10 +2145,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/installer:validate';
 
@@ -2295,10 +2196,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2344,10 +2244,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2384,10 +2283,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2437,19 +2335,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2493,10 +2384,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -2543,13 +2433,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2599,10 +2486,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2647,10 +2533,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2704,19 +2589,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2766,10 +2644,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2814,10 +2691,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -2857,10 +2733,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2897,10 +2772,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -2951,19 +2825,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3007,10 +2874,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -3057,13 +2923,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3106,10 +2969,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -3154,10 +3016,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -3215,10 +3076,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3258,10 +3118,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3298,10 +3157,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3350,19 +3208,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3406,10 +3257,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name') + ':move';
@@ -3456,13 +3306,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -3513,10 +3360,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3569,19 +3415,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3631,10 +3470,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3679,10 +3517,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3736,19 +3573,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3799,10 +3629,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3854,19 +3683,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1alpha1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -3912,10 +3734,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/policies:get';
 
@@ -3953,10 +3774,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/policies:set';
 
@@ -3992,10 +3812,9 @@
   }) async {
     final _body =
         request == null ? null : convert.json.encode(request.toJson());
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'v1alpha1/policies:test';
 
diff --git a/generated/googleapis_beta/lib/sqladmin/v1beta4.dart b/generated/googleapis_beta/lib/sqladmin/v1beta4.dart
index fb5784e..1c74964 100644
--- a/generated/googleapis_beta/lib/sqladmin/v1beta4.dart
+++ b/generated/googleapis_beta/lib/sqladmin/v1beta4.dart
@@ -116,10 +116,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -171,10 +170,9 @@
     if (id == null) {
       throw core.ArgumentError('Parameter id is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -227,10 +225,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -284,16 +281,11 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -351,10 +343,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -407,10 +398,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -462,10 +452,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -511,10 +500,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -574,10 +562,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -636,10 +623,9 @@
     if (database == null) {
       throw core.ArgumentError('Parameter database is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -685,13 +671,10 @@
     core.String databaseVersion,
     core.String $fields,
   }) async {
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (databaseVersion != null) {
-      _queryParams['databaseVersion'] = [databaseVersion];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (databaseVersion != null) 'databaseVersion': [databaseVersion],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     const _url = 'sql/v1beta4/flags';
 
@@ -745,10 +728,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -802,10 +784,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -852,10 +833,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -905,10 +885,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -961,10 +940,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1017,10 +995,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1066,10 +1043,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1120,10 +1096,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1169,10 +1144,9 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1227,19 +1201,12 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1289,10 +1256,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1345,10 +1311,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1395,10 +1360,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1444,10 +1408,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1493,10 +1456,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1548,10 +1510,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1603,10 +1564,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1652,10 +1612,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1700,10 +1659,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1753,10 +1711,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1809,10 +1766,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1863,10 +1819,9 @@
     if (operation == null) {
       throw core.ArgumentError('Parameter operation is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1915,19 +1870,12 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (instance != null) {
-      _queryParams['instance'] = [instance];
-    }
-    if (maxResults != null) {
-      _queryParams['maxResults'] = ['${maxResults}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (instance != null) 'instance': [instance],
+      if (maxResults != null) 'maxResults': ['${maxResults}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -1991,10 +1939,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2053,16 +2000,11 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (skipVerification != null) {
-      _queryParams['skipVerification'] = ['${skipVerification}'];
-    }
-    if (syncMode != null) {
-      _queryParams['syncMode'] = [syncMode];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (skipVerification != null) 'skipVerification': ['${skipVerification}'],
+      if (syncMode != null) 'syncMode': [syncMode],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2121,16 +2063,12 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (syncMode != null) {
-      _queryParams['syncMode'] = [syncMode];
-    }
-    if (verifyConnectionOnly != null) {
-      _queryParams['verifyConnectionOnly'] = ['${verifyConnectionOnly}'];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (syncMode != null) 'syncMode': [syncMode],
+      if (verifyConnectionOnly != null)
+        'verifyConnectionOnly': ['${verifyConnectionOnly}'],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2191,10 +2129,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2249,10 +2186,9 @@
     if (sha1Fingerprint == null) {
       throw core.ArgumentError('Parameter sha1Fingerprint is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2307,10 +2243,9 @@
     if (sha1Fingerprint == null) {
       throw core.ArgumentError('Parameter sha1Fingerprint is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2364,10 +2299,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2414,10 +2348,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2466,10 +2399,9 @@
     if (project == null) {
       throw core.ArgumentError('Parameter project is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2525,16 +2457,11 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (host != null) {
-      _queryParams['host'] = [host];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (host != null) 'host': [host],
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2584,10 +2511,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2633,10 +2559,9 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
@@ -2693,16 +2618,11 @@
     if (instance == null) {
       throw core.ArgumentError('Parameter instance is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (host != null) {
-      _queryParams['host'] = [host];
-    }
-    if (name != null) {
-      _queryParams['name'] = [name];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (host != null) 'host': [host],
+      if (name != null) 'name': [name],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'sql/v1beta4/projects/' +
         commons.Escaper.ecapeVariable('$project') +
diff --git a/generated/googleapis_beta/lib/toolresults/v1beta3.dart b/generated/googleapis_beta/lib/toolresults/v1beta3.dart
index 74e768a..96c6ab0 100644
--- a/generated/googleapis_beta/lib/toolresults/v1beta3.dart
+++ b/generated/googleapis_beta/lib/toolresults/v1beta3.dart
@@ -98,10 +98,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -158,10 +157,9 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -222,13 +220,10 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -276,10 +271,9 @@
     if (historyId == null) {
       throw core.ArgumentError('Parameter historyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -337,19 +331,12 @@
     if (projectId == null) {
       throw core.ArgumentError('Parameter projectId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filterByName != null) {
-      _queryParams['filterByName'] = [filterByName];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filterByName != null) 'filterByName': [filterByName],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -421,13 +408,10 @@
     if (historyId == null) {
       throw core.ArgumentError('Parameter historyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -483,10 +467,9 @@
     if (executionId == null) {
       throw core.ArgumentError('Parameter executionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -548,16 +531,11 @@
     if (historyId == null) {
       throw core.ArgumentError('Parameter historyId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -624,13 +602,10 @@
     if (executionId == null) {
       throw core.ArgumentError('Parameter executionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -696,10 +671,9 @@
     if (clusterId == null) {
       throw core.ArgumentError('Parameter clusterId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -761,10 +735,9 @@
     if (executionId == null) {
       throw core.ArgumentError('Parameter executionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -835,10 +808,9 @@
     if (environmentId == null) {
       throw core.ArgumentError('Parameter environmentId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -906,16 +878,11 @@
     if (executionId == null) {
       throw core.ArgumentError('Parameter executionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -992,13 +959,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (locale != null) {
-      _queryParams['locale'] = [locale];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (locale != null) 'locale': [locale],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -1063,13 +1027,10 @@
     if (executionId == null) {
       throw core.ArgumentError('Parameter executionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1133,10 +1094,9 @@
     if (stepId == null) {
       throw core.ArgumentError('Parameter stepId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1199,10 +1159,9 @@
     if (stepId == null) {
       throw core.ArgumentError('Parameter stepId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1275,16 +1234,11 @@
     if (executionId == null) {
       throw core.ArgumentError('Parameter executionId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1360,13 +1314,10 @@
     if (stepId == null) {
       throw core.ArgumentError('Parameter stepId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (requestId != null) {
-      _queryParams['requestId'] = [requestId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (requestId != null) 'requestId': [requestId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1439,10 +1390,9 @@
     if (stepId == null) {
       throw core.ArgumentError('Parameter stepId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1521,10 +1471,9 @@
     if (stepId == null) {
       throw core.ArgumentError('Parameter stepId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1608,10 +1557,9 @@
     if (stepId == null) {
       throw core.ArgumentError('Parameter stepId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1683,10 +1631,9 @@
     if (sampleSeriesId == null) {
       throw core.ArgumentError('Parameter sampleSeriesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1759,13 +1706,10 @@
     if (stepId == null) {
       throw core.ArgumentError('Parameter stepId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = filter;
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': filter,
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1855,10 +1799,9 @@
     if (sampleSeriesId == null) {
       throw core.ArgumentError('Parameter sampleSeriesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -1946,16 +1889,11 @@
     if (sampleSeriesId == null) {
       throw core.ArgumentError('Parameter sampleSeriesId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2038,10 +1976,9 @@
     if (testCaseId == null) {
       throw core.ArgumentError('Parameter testCaseId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2118,16 +2055,11 @@
     if (stepId == null) {
       throw core.ArgumentError('Parameter stepId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
@@ -2211,16 +2143,11 @@
     if (stepId == null) {
       throw core.ArgumentError('Parameter stepId is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'toolresults/v1beta3/projects/' +
         commons.Escaper.ecapeVariable('$projectId') +
diff --git a/generated/googleapis_beta/lib/transcoder/v1beta1.dart b/generated/googleapis_beta/lib/transcoder/v1beta1.dart
index 3b16158..391bf35 100644
--- a/generated/googleapis_beta/lib/transcoder/v1beta1.dart
+++ b/generated/googleapis_beta/lib/transcoder/v1beta1.dart
@@ -121,13 +121,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (jobTemplateId != null) {
-      _queryParams['jobTemplateId'] = [jobTemplateId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (jobTemplateId != null) 'jobTemplateId': [jobTemplateId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -169,10 +166,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -210,10 +206,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -259,16 +254,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -320,10 +310,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
@@ -363,10 +352,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -404,10 +392,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta1/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -450,16 +437,11 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta1/' + commons.Escaper.ecapeVariableReserved('$parent') + '/jobs';
diff --git a/generated/googleapis_beta/lib/workflowexecutions/v1beta.dart b/generated/googleapis_beta/lib/workflowexecutions/v1beta.dart
index a3b4927..0ef58dc 100644
--- a/generated/googleapis_beta/lib/workflowexecutions/v1beta.dart
+++ b/generated/googleapis_beta/lib/workflowexecutions/v1beta.dart
@@ -122,10 +122,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url =
         'v1beta/' + commons.Escaper.ecapeVariableReserved('$name') + ':cancel';
@@ -172,10 +171,9 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -226,13 +224,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -298,19 +293,12 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if (view != null) {
-      _queryParams['view'] = [view];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if (view != null) 'view': [view],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
diff --git a/generated/googleapis_beta/lib/workflows/v1beta.dart b/generated/googleapis_beta/lib/workflows/v1beta.dart
index c080f8c..9d48e00 100644
--- a/generated/googleapis_beta/lib/workflows/v1beta.dart
+++ b/generated/googleapis_beta/lib/workflows/v1beta.dart
@@ -102,10 +102,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -150,19 +149,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -213,10 +205,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -256,10 +247,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -313,19 +303,12 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$name') +
@@ -388,13 +371,10 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (workflowId != null) {
-      _queryParams['workflowId'] = [workflowId];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (workflowId != null) 'workflowId': [workflowId],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -438,10 +418,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -480,10 +459,9 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');
 
@@ -543,22 +521,13 @@
     if (parent == null) {
       throw core.ArgumentError('Parameter parent is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (filter != null) {
-      _queryParams['filter'] = [filter];
-    }
-    if (orderBy != null) {
-      _queryParams['orderBy'] = [orderBy];
-    }
-    if (pageSize != null) {
-      _queryParams['pageSize'] = ['${pageSize}'];
-    }
-    if (pageToken != null) {
-      _queryParams['pageToken'] = [pageToken];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (filter != null) 'filter': [filter],
+      if (orderBy != null) 'orderBy': [orderBy],
+      if (pageSize != null) 'pageSize': ['${pageSize}'],
+      if (pageToken != null) 'pageToken': [pageToken],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' +
         commons.Escaper.ecapeVariableReserved('$parent') +
@@ -613,13 +582,10 @@
     if (name == null) {
       throw core.ArgumentError('Parameter name is required.');
     }
-    final _queryParams = <core.String, core.List<core.String>>{};
-    if (updateMask != null) {
-      _queryParams['updateMask'] = [updateMask];
-    }
-    if ($fields != null) {
-      _queryParams['fields'] = [$fields];
-    }
+    final _queryParams = <core.String, core.List<core.String>>{
+      if (updateMask != null) 'updateMask': [updateMask],
+      if ($fields != null) 'fields': [$fields],
+    };
 
     final _url = 'v1beta/' + commons.Escaper.ecapeVariableReserved('$name');