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

@@ -962,7 +962,7 @@ class UnaryStreamCallResponseIterator(_StreamCallResponseIterator,
 
 class StreamStreamCallResponseIterator(_StreamCallResponseIterator,
                                        _base_call.StreamStreamCall):
-    """UnaryStreamCall class wich uses an alternative response iterator."""
+    """StreamStreamCall class wich uses an alternative response iterator."""
 
     async def read(self) -> ResponseType:
         # Behind the scenes everyting goes through the

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

@@ -91,8 +91,8 @@ class TestStreamStreamClientInterceptor(AioTestBase):
                 response_cnt = 0
                 async for response in call:
                     response_cnt += 1
-                    self.assertIs(type(response),
+                    self.assertIsInstance(
-                                  messages_pb2.StreamingOutputCallResponse)
+                        response, messages_pb2.StreamingOutputCallResponse)
                     self.assertEqual(_RESPONSE_PAYLOAD_SIZE,
                                      len(response.payload.body))