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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 get(self, timeout=0):
 """Return next item from queue. Blocking by default. Blocks if queue is empty, see `timeout` parameter. Internally this also pops uid from queue and writes it to ackbuffer. :param timeout: blocking timeout in seconds - 0: block forever (default) - negative: disable blocking """

        self._autoclean()
        if timeout < 0:
            uid = self._redis.rpoplpush(self.QUEUE_KEY, self.ACKBUF_KEY)
        else:
            uid = self._redis.brpoplpush(self.QUEUE_KEY, self.ACKBUF_KEY, timeout)
        item = self._redis.hget(self.ITEMS_KEY, uid)

        # Deserialize only if the item exists: it is equal to None if it times out
        if self.serializer is not None and item is not None:
            item = self.serializer.loads(item)

        return uid, item