diff --git a/recipes/packages/packages.expected/emulator-test.json b/recipes/packages/packages.expected/emulator-test.json
index 8225ce8..71dc544 100644
--- a/recipes/packages/packages.expected/emulator-test.json
+++ b/recipes/packages/packages.expected/emulator-test.json
@@ -297,6 +297,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -330,6 +331,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -437,6 +439,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -502,6 +505,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -556,6 +560,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -612,6 +617,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -651,6 +657,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -706,6 +713,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -745,6 +753,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -785,6 +794,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -836,6 +846,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -876,6 +887,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -925,6 +937,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -968,6 +981,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -1000,6 +1014,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
diff --git a/recipes/packages/packages.expected/mac.json b/recipes/packages/packages.expected/mac.json
index 58f9c48..5ec32bd 100644
--- a/recipes/packages/packages.expected/mac.json
+++ b/recipes/packages/packages.expected/mac.json
@@ -296,6 +296,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -328,6 +329,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -433,6 +435,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -473,6 +476,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -511,6 +515,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -562,6 +567,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -603,6 +609,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -653,6 +660,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
diff --git a/recipes/packages/packages.expected/master_channel.json b/recipes/packages/packages.expected/master_channel.json
index 36a62e5..691b466 100644
--- a/recipes/packages/packages.expected/master_channel.json
+++ b/recipes/packages/packages.expected/master_channel.json
@@ -296,6 +296,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -328,6 +329,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -433,6 +435,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -471,6 +474,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -507,6 +511,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -556,6 +561,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -595,6 +601,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -643,6 +650,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
diff --git a/recipes/packages/packages.expected/multiple_tests_with_always.json b/recipes/packages/packages.expected/multiple_tests_with_always.json
index 7e60c36..48cc26c 100644
--- a/recipes/packages/packages.expected/multiple_tests_with_always.json
+++ b/recipes/packages/packages.expected/multiple_tests_with_always.json
@@ -296,6 +296,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -328,6 +329,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -445,6 +447,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -483,6 +486,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -519,6 +523,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -569,6 +574,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -608,6 +614,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -656,6 +663,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -704,6 +712,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -742,6 +751,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -778,6 +788,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -827,6 +838,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -866,6 +878,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -914,6 +927,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
diff --git a/recipes/packages/packages.expected/stable_channel.json b/recipes/packages/packages.expected/stable_channel.json
index 26ea06b..48eadf1 100644
--- a/recipes/packages/packages.expected/stable_channel.json
+++ b/recipes/packages/packages.expected/stable_channel.json
@@ -277,6 +277,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -309,6 +310,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -414,6 +416,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -452,6 +455,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -488,6 +492,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -537,6 +542,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -576,6 +582,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
@@ -624,6 +631,7 @@
       "LUCI_CI": "True",
       "LUCI_PR": "",
       "OS": "linux",
+      "PR_OVERRIDE_LABELS": "",
       "PUB_CACHE": "[START_DIR]/.pub-cache",
       "REVISION": "12345abcde12345abcde12345abcde12345abcde",
       "SDK_CHECKOUT_PATH": "[START_DIR]/flutter",
diff --git a/recipes/packages/packages.py b/recipes/packages/packages.py
index e06f428..89454ee 100644
--- a/recipes/packages/packages.py
+++ b/recipes/packages/packages.py
@@ -56,6 +56,9 @@
 
   env, env_prefixes = api.repo_util.flutter_environment(flutter_checkout_path)
 
+  # Join labels with ',' and do no perform any char escaping.
+  env['PR_OVERRIDE_LABELS'] = ','.join(api.properties.get('overrides', ''))
+
   env['USE_EMULATOR'] = False
   with api.step.nest('Dependencies'):
     deps = api.properties.get('dependencies', [])
@@ -95,12 +98,12 @@
         with ExitStack() as stack:
           if env['USE_EMULATOR']:
             stack.enter_context(
-                  api.android_virtual_device(
-                      env=env,
-                      env_prefixes=env_prefixes,
-                      version=env['EMULATOR_VERSION']
-                  )
-              )
+                api.android_virtual_device(
+                    env=env,
+                    env_prefixes=env_prefixes,
+                    version=env['EMULATOR_VERSION']
+                )
+            )
           run_test(api, result, packages_checkout_path, env, env_prefixes)
 
   # This is to clean up leaked processes.
@@ -108,6 +111,7 @@
   # Collect memory/cpu/process after task execution.
   api.os_utils.collect_os_info()
 
+
 def run_test(api, result, packages_checkout_path, env, env_prefixes):
   """Run tests sequentially following the script"""
   failed_tasks = []
@@ -129,7 +133,12 @@
       #   2) there are earlier task failures, but the current task is marked as `always: True`.
       #   Note that infra tasks fail and do not run the rest of the tasks including `always`.
       if not failed_tasks or always_run_task:
-        step = api.step(task['name'], cmd, raise_on_failure=is_infra_step, infra_step=is_infra_step)
+        step = api.step(
+            task['name'],
+            cmd,
+            raise_on_failure=is_infra_step,
+            infra_step=is_infra_step
+        )
         if step.retcode != 0:
           failed_tasks.append(task['name'])
     api.logs_util.upload_logs(task['name'])
@@ -164,8 +173,7 @@
   )
   checkout_path = api.path['cleanup'].join('tmp_tmp_1', 'flutter sdk')
   yield api.test(
-      "emulator-test", 
-      api.repo_util.flutter_environment_data(flutter_path),
+      "emulator-test", api.repo_util.flutter_environment_data(flutter_path),
       api.properties(
           channel='master',
           version_file='flutter_master.version',
@@ -173,15 +181,13 @@
           dependencies=[{
               "dependency": "android_virtual_device", "version": "31"
           }],
-      ),
-      api.step_data('read yaml.parse', api.json.output(tasks_dict)),
+      ), api.step_data('read yaml.parse', api.json.output(tasks_dict)),
       api.step_data(
           'Run package tests.start avd.Start Android emulator (API level 31)',
           stdout=api.raw_io.output_text(
               'android_31_google_apis_x86|emulator-5554 started (pid: 17687)'
           )
-      ), 
-      api.runtime(is_experimental=True)
+      ), api.runtime(is_experimental=True)
   )
   multiple_tasks_dict = {
       'tasks': [{'name': 'one', 'script': 'myscript', 'args': ['arg1', 'arg2']},