reformat files to fix lint presubmit

Author: ohmayr

google/api_core/grpc_helpers_async.py

@@ -219,7 +219,7 @@ def create_channel(
     default_host=None,
     compression=None,
     attempt_direct_path: Optional[bool] = False,
-    **kwargs
+    **kwargs,
 ):
     """Create an AsyncIO secure channel with credentials.
 

google/api_core/operation.py

@@ -78,7 +78,7 @@ def __init__(
         result_type,
         metadata_type=None,
         polling=polling.DEFAULT_POLLING,
-        **kwargs
+        **kwargs,
     ):
         super(Operation, self).__init__(polling=polling, **kwargs)
         self._operation = operation

google/api_core/operations_v1/pagers.py

@@ -48,7 +48,7 @@ def __init__(
         request: operations_pb2.ListOperationsRequest,
         response: operations_pb2.ListOperationsResponse,
         *,
-        metadata: Sequence[Tuple[str, str]] = ()
+        metadata: Sequence[Tuple[str, str]] = (),
     ):
         super().__init__(
             method=method, request=request, response=response, metadata=metadata

google/api_core/operations_v1/pagers_async.py

@@ -48,7 +48,7 @@ def __init__(
         request: operations_pb2.ListOperationsRequest,
         response: operations_pb2.ListOperationsResponse,
         *,
-        metadata: Sequence[Tuple[str, str]] = ()
+        metadata: Sequence[Tuple[str, str]] = (),
     ):
         super().__init__(
             method=method, request=request, response=response, metadata=metadata

google/api_core/operations_v1/pagers_base.py

@@ -47,7 +47,7 @@ def __init__(
         request: operations_pb2.ListOperationsRequest,
         response: operations_pb2.ListOperationsResponse,
         *,
-        metadata: Sequence[Tuple[str, str]] = ()
+        metadata: Sequence[Tuple[str, str]] = (),
     ):
         """Instantiate the pager.