code: def _consume_add_and_get_tag(self, consume_rpc_result):
          
          consumer_tag = consume_rpc_result['consumer_tag']
          self._channel.add_consumer_tag(consumer_tag)
          return consumer_tag
docs: Add the tag to the channel and return it.
  
          :param dict consume_rpc_result:
  
          :rtype: str