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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 subscribe(self, queue=None, *levels):
 """ Subscribe to the aggregated log stream. On subscribe a ledis queue will be fed with all running processes logs. Always use the returned queue name from this method, even if u specified the queue name to use Note: it is legal to subscribe to the same queue, but would be a bad logic if two processes are trying to read from the same queue. :param queue: Your unique queue name, otherwise, a one will get generated for your :param levels: :return: queue name to pull from """

        args = {
            'queue': queue,
            'levels': list(levels),
        }

        self._subscribe_chk.check(args)

        return self._client.json('logger.subscribe', args)