Apply formatting & fix typing

src/python/grpcio/grpc/experimental/aio/_call.py

@@ -26,9 +26,9 @@ from grpc._cython import cygrpc
 
 from . import _base_call
 from ._metadata import Metadata
-from ._typing import (DeserializingFunction, DoneCallbackType,
+from ._typing import (DeserializingFunction, DoneCallbackType, MetadatumType,
-                      MetadatumType, RequestIterableType, RequestType,
+                      RequestIterableType, RequestType, ResponseType,
-                      ResponseType, SerializingFunction)
+                      SerializingFunction)
 
 __all__ = 'AioRpcError', 'Call', 'UnaryUnaryCall', 'UnaryStreamCall'
 

src/python/grpcio_tests/tests_aio/unit/metadata_test.py

@@ -212,8 +212,8 @@ class TestMetadata(AioTestBase):
 
     async def test_from_client_to_server_with_list(self):
         multicallable = self._client.unary_unary(_TEST_CLIENT_TO_SERVER)
-        call = multicallable(_REQUEST,
+        call = multicallable(
-                             metadata=list(_INITIAL_METADATA_FROM_CLIENT_TO_SERVER))
+            _REQUEST, metadata=list(_INITIAL_METADATA_FROM_CLIENT_TO_SERVER))  # pytype: disable=wrong-arg-types
         self.assertEqual(_RESPONSE, await call)
         self.assertEqual(grpc.StatusCode.OK, await call.code())