事件：'connect'

【Event: 'connect'】

• session <Http2Session>
• socket <net.Socket>

一旦 Http2Session 成功连接到远程节点并可以开始通信，就会触发 'connect' 事件。

【The 'connect' event is emitted once the Http2Session has been successfully connected to the remote peer and communication may begin.】

用户代码通常不会直接监听此事件。

【User code will typically not listen for this event directly.】