code: def _basic_cancel(self, frame_in):
          
          LOGGER.warning(
              'Received Basic.Cancel on consumer_tag: %s',
              try_utf8_decode(frame_in.consumer_tag)
          )
          self.remove_consumer_tag(frame_in.consumer_tag)
docs: Handle a Basic Cancel frame.
  
          :param specification.Basic.Cancel frame_in: Amqp frame.
  
          :return: