Apache zookeeper 如何检查现有Zookeeper临时节点的超时？

我知道Zookeeper服务器有一个名为tickTime minimum heartbeat time=2*tickTime的配置，客户端可以请求会话超时

当建立连接时。。它获取与其关联的会话超时。这是客户机和服务器之间协商的

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如何找到他们都确定的值？

在Java中，ZooKeeper实例有一个方法：getSessionTimeout。评论如下：

public int getSessionTimeout()

The negotiated session timeout for this ZooKeeper client instance. 
The value returned is not valid until the client connects to a server 
and may change after a re-connect. This method is NOT thread safe

Returns:
current session timeout