BREAKING: drop the `Api` from `Resource` types

It's cleaner.
diff --git a/generated/googleapis_beta/test/factchecktools/v1alpha1_test.dart b/generated/googleapis_beta/test/factchecktools/v1alpha1_test.dart
index 03a9fbe..25bf7e0 100644
--- a/generated/googleapis_beta/test/factchecktools/v1alpha1_test.dart
+++ b/generated/googleapis_beta/test/factchecktools/v1alpha1_test.dart
@@ -558,7 +558,7 @@
     });
   });
 
-  unittest.group('resource-ClaimsResourceApi', () {
+  unittest.group('resource-ClaimsResource', () {
     unittest.test('method--search', () {
       var mock = HttpServerMock();
       var res = api.FactCheckToolsApi(mock).claims;
@@ -637,7 +637,7 @@
     });
   });
 
-  unittest.group('resource-PagesResourceApi', () {
+  unittest.group('resource-PagesResource', () {
     unittest.test('method--create', () {
       var mock = HttpServerMock();
       var res = api.FactCheckToolsApi(mock).pages;