code: public static boolean isRegularQueue(final Jedis jedis, final String key) {
          return LIST.equalsIgnoreCase(jedis.type(key));
      }
docs: Determines if the queue identified by the given key is a regular queue.
  
  @param jedis
  connection to Redis
  @param key
  the key that identifies a queue
  @return true if the key identifies a regular queue, false otherwise