fix: Add async context manager return types (#191)

* fix: Add async context manager return types

chore: Mock return_value should not populate oneof message fields

chore: Support snippet generation for services that only support REST transport

chore: Update gapic-generator-python to v1.11.0
PiperOrigin-RevId: 545430278

Source-Link: googleapis/googleapis@601b532

Source-Link: googleapis/googleapis-gen@b3f18d0
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* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

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packages/google-cloud-bigquery-migration/google/cloud/bigquery_migration_v2/services/migration_service/async_client.py

@@ -1011,7 +1011,7 @@ async def sample_list_migration_subtasks():
         # Done; return the response.
         return response
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "MigrationServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):

packages/google-cloud-bigquery-migration/google/cloud/bigquery_migration_v2alpha/services/migration_service/async_client.py

@@ -1029,7 +1029,7 @@ async def sample_list_migration_subtasks():
         # Done; return the response.
         return response
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "MigrationServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):

packages/google-cloud-bigquery-migration/google/cloud/bigquery_migration_v2alpha/services/sql_translation_service/async_client.py

@@ -342,7 +342,7 @@ async def sample_translate_query():
         # Done; return the response.
         return response
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "SqlTranslationServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):

packages/google-cloud-bigquery-migration/samples/generated_samples/snippet_metadata_google.cloud.bigquery.migration.v2.json

@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-bigquery-migration",
-    "version": "0.11.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {

packages/google-cloud-bigquery-migration/samples/generated_samples/snippet_metadata_google.cloud.bigquery.migration.v2alpha.json

@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-bigquery-migration",
-    "version": "0.11.0"
+    "version": "0.1.0"
   },
   "snippets": [
     {

packages/google-cloud-bigquery-migration/tests/unit/gapic/bigquery_migration_v2/test_migration_service.py

@@ -1661,9 +1661,11 @@ async def test_list_migration_workflows_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_migration_workflows(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token
@@ -2839,9 +2841,11 @@ async def test_list_migration_subtasks_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_migration_subtasks(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token

packages/google-cloud-bigquery-migration/tests/unit/gapic/bigquery_migration_v2alpha/test_migration_service.py

@@ -1663,9 +1663,11 @@ async def test_list_migration_workflows_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_migration_workflows(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token
@@ -2841,9 +2843,11 @@ async def test_list_migration_subtasks_async_pages():
             RuntimeError,
         )
         pages = []
-        async for page_ in (
+        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
+        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
+        async for page_ in (  # pragma: no branch
             await client.list_migration_subtasks(request={})
-        ).pages:  # pragma: no branch
+        ).pages:
             pages.append(page_)
         for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
             assert page_.raw_page.next_page_token == token