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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 unsubscribe(self, channel, *channels):
 """Unsubscribe from specific channels. Arguments can be instances of :class:`~aioredis.Channel`. """

        conn = self._pool_or_conn
        return conn.execute_pubsub(b'UNSUBSCRIBE', channel, *channels)