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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _consume_add_and_get_tag(self, consume_rpc_result):
 """Add the tag to the channel and return it. :param dict consume_rpc_result: :rtype: str """

        consumer_tag = consume_rpc_result['consumer_tag']
        self._channel.add_consumer_tag(consumer_tag)
        return consumer_tag