chore: use gapic-generator-python 0.56.2 (#80)

* chore: update Java and Python dependencies

PiperOrigin-RevId: 408420890

Source-Link: googleapis/googleapis@2921f9f

Source-Link: googleapis/googleapis-gen@6598ca8
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiNjU5OGNhOGNiYmY1MjI2NzMzYTA5OWM0NTA2NTE4YTVhZjZmZjc0YyJ9

* 🦉 Updates from OwlBot

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>

packages/google-cloud-service-management/google/cloud/servicemanagement_v1/services/service_manager/async_client.py

@@ -20,14 +20,17 @@
 import pkg_resources
 import warnings
 
-from google.api_core.client_options import ClientOptions  # type: ignore
-from google.api_core import exceptions as core_exceptions  # type: ignore
-from google.api_core import gapic_v1  # type: ignore
-from google.api_core import retry as retries  # type: ignore
+from google.api_core.client_options import ClientOptions
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry as retries
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 
-OptionalRetry = Union[retries.Retry, object]
+try:
+    OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault]
+except AttributeError:  # pragma: NO COVER
+    OptionalRetry = Union[retries.Retry, object]  # type: ignore
 
 from google.api import auth_pb2  # type: ignore
 from google.api import backend_pb2  # type: ignore

packages/google-cloud-service-management/google/cloud/servicemanagement_v1/services/service_manager/client.py

@@ -14,24 +14,26 @@
 # limitations under the License.
 #
 from collections import OrderedDict
-from distutils import util
 import os
 import re
 from typing import Dict, Optional, Sequence, Tuple, Type, Union
 import pkg_resources
 import warnings
 
-from google.api_core import client_options as client_options_lib  # type: ignore
-from google.api_core import exceptions as core_exceptions  # type: ignore
-from google.api_core import gapic_v1  # type: ignore
-from google.api_core import retry as retries  # type: ignore
+from google.api_core import client_options as client_options_lib
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry as retries
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport import mtls  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
 from google.auth.exceptions import MutualTLSChannelError  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 
-OptionalRetry = Union[retries.Retry, object]
+try:
+    OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault]
+except AttributeError:  # pragma: NO COVER
+    OptionalRetry = Union[retries.Retry, object]  # type: ignore
 
 from google.api import auth_pb2  # type: ignore
 from google.api import backend_pb2  # type: ignore
@@ -297,8 +299,15 @@ def __init__(
             client_options = client_options_lib.ClientOptions()
 
         # Create SSL credentials for mutual TLS if needed.
-        use_client_cert = bool(
-            util.strtobool(os.getenv("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false"))
+        if os.getenv("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false") not in (
+            "true",
+            "false",
+        ):
+            raise ValueError(
+                "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+            )
+        use_client_cert = (
+            os.getenv("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false") == "true"
         )
 
         client_cert_source_func = None

packages/google-cloud-service-management/google/cloud/servicemanagement_v1/services/service_manager/transports/base.py

@@ -18,11 +18,11 @@
 import pkg_resources
 
 import google.auth  # type: ignore
-import google.api_core  # type: ignore
-from google.api_core import exceptions as core_exceptions  # type: ignore
-from google.api_core import gapic_v1  # type: ignore
-from google.api_core import retry as retries  # type: ignore
-from google.api_core import operations_v1  # type: ignore
+import google.api_core
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry as retries
+from google.api_core import operations_v1
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 

packages/google-cloud-service-management/google/cloud/servicemanagement_v1/services/service_manager/transports/grpc.py

@@ -16,9 +16,9 @@
 import warnings
 from typing import Callable, Dict, Optional, Sequence, Tuple, Union
 
-from google.api_core import grpc_helpers  # type: ignore
-from google.api_core import operations_v1  # type: ignore
-from google.api_core import gapic_v1  # type: ignore
+from google.api_core import grpc_helpers
+from google.api_core import operations_v1
+from google.api_core import gapic_v1
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore

packages/google-cloud-service-management/google/cloud/servicemanagement_v1/services/service_manager/transports/grpc_asyncio.py

@@ -16,9 +16,9 @@
 import warnings
 from typing import Awaitable, Callable, Dict, Optional, Sequence, Tuple, Union
 
-from google.api_core import gapic_v1  # type: ignore
-from google.api_core import grpc_helpers_async  # type: ignore
-from google.api_core import operations_v1  # type: ignore
+from google.api_core import gapic_v1
+from google.api_core import grpc_helpers_async
+from google.api_core import operations_v1
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
 

packages/google-cloud-service-management/google/cloud/servicemanagement_v1/types/resources.py

@@ -240,10 +240,12 @@ class Rollout(proto.Message):
         traffic_percent_strategy (google.cloud.servicemanagement_v1.types.Rollout.TrafficPercentStrategy):
             Google Service Control selects service
             configurations based on traffic percentage.
+
             This field is a member of `oneof`_ ``strategy``.
         delete_service_strategy (google.cloud.servicemanagement_v1.types.Rollout.DeleteServiceStrategy):
             The strategy associated with a rollout to delete a
             ``ManagedService``. Readonly.
+
             This field is a member of `oneof`_ ``strategy``.
         service_name (str):
             The name of the service associated with this