code: def _streaming_request_iterable(self, config, requests):
          
          yield self.types.StreamingRecognizeRequest(streaming_config=config)
          for request in requests:
              yield request
docs: A generator that yields the config followed by the requests.
  
          Args:
              config (~.speech_v1.types.StreamingRecognitionConfig): The
                  configuration to use for the stream.
              requests (Iterable[~.speech_v1.types.StreamingRecognizeRequest]):
                  The input objects.
  
          Returns:
              Iterable[~.speech_v1.types.StreamingRecognizeRequest]): The
                  correctly formatted input for
                  :meth:`~.speech_v1.SpeechClient.streaming_recognize`.