code: def dump_queue(self, *names):
          
          conn = redis.StrictRedis(connection_pool=self.pool)
          for name in names:
              if name == 'worker':
                  logger.debug('last worker: ' + conn.get(self._key_worker()))
              elif name == 'available':
                  logger.debug('available: ' +
                               str(conn.zrevrange(self._key_available(), 0, -1,
                                                  withscores=True)))
              elif name == 'priorities':
                  logger.debug('priorities: ' +
                               str(conn.hgetall(self._key_priorities())))
              elif name == 'expiration':
                  logger.debug('expiration: ' +
                               str(conn.zrevrange(self._key_expiration(), 0, -1,
                                                  withscores=True)))
              elif name == 'workers':
                  logger.debug('workers: ' +
                               str(conn.hgetall(self._key_workers())))
              elif name.startswith('reservations_'):
                  item = name[len('reservations_'):]
                  logger.debug('reservations for ' + item + ': ' +
                               str(conn.smembers(self._key_reservations(item))))
docs: Debug-log some of the queues.
  
          ``names`` may include any of "worker", "available", "priorities",
          "expiration", "workers", or "reservations_ITEM" filling in some
          specific item.