事件：'ready'

🌐 Event: 'ready'

'ready' 事件在 Http2Stream 已打开、已分配 id 并可使用时触发。监听器不需要任何参数。

🌐 The 'ready' event is emitted when the Http2Stream has been opened, has been assigned an id, and can be used. The listener does not expect any arguments.