code: @SuppressWarnings("unchecked")
  	public <T> T lpop(Object key) {
  		Jedis jedis = getJedis();
  		try {
  			return (T)valueFromBytes(jedis.lpop(keyToBytes(key)));
  		}
  		finally {close(jedis);}
  	}
docs: 移除并返回列表 key 的头元素。