fix: Add async context manager return types (googleapis#122)

* 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: https://github.com/googleapis/googleapis-gen/commit/b3f18d0f6560a855022fd058865e7620479d7af9
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* 🦉 Updates from OwlBot post-processor

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

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

packages/google-cloud-batch/google/cloud/batch_v1/services/batch_service/async_client.py

@@ -1252,7 +1252,7 @@ async def list_locations(
         # Done; return the response.
         return response
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "BatchServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):

packages/google-cloud-batch/google/cloud/batch_v1/services/batch_service/transports/rest.py

@@ -1253,7 +1253,7 @@ def __call__(
             request_kwargs = json_format.MessageToDict(request)
             transcoded_request = path_template.transcode(http_options, **request_kwargs)
 
-            body = json.loads(json.dumps(transcoded_request["body"]))
+            body = json.dumps(transcoded_request["body"])
             uri = transcoded_request["uri"]
             method = transcoded_request["method"]
 

packages/google-cloud-batch/google/cloud/batch_v1alpha/services/batch_service/async_client.py

@@ -1252,7 +1252,7 @@ async def list_locations(
         # Done; return the response.
         return response
 
-    async def __aenter__(self):
+    async def __aenter__(self) -> "BatchServiceAsyncClient":
         return self
 
     async def __aexit__(self, exc_type, exc, tb):

packages/google-cloud-batch/google/cloud/batch_v1alpha/services/batch_service/transports/rest.py

@@ -1253,7 +1253,7 @@ def __call__(
             request_kwargs = json_format.MessageToDict(request)
             transcoded_request = path_template.transcode(http_options, **request_kwargs)
 
-            body = json.loads(json.dumps(transcoded_request["body"]))
+            body = json.dumps(transcoded_request["body"])
             uri = transcoded_request["uri"]
             method = transcoded_request["method"]
 

packages/google-cloud-batch/tests/unit/gapic/batch_v1/test_batch_service.py

@@ -1840,9 +1840,11 @@ async def test_list_jobs_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_jobs(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
@@ -2492,9 +2494,11 @@ async def test_list_tasks_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_tasks(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-batch/tests/unit/gapic/batch_v1alpha/test_batch_service.py

@@ -1852,9 +1852,11 @@ async def test_list_jobs_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_jobs(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
@@ -2504,9 +2506,11 @@ async def test_list_tasks_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_tasks(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