Optional parameter on_disconnect for Page about nicegui HOT 2 CLOSED

class MyPage(ui.page):
    def __init__(self,
                 route: str,
                 title: Optional[str] = None,
                 favicon: Optional[str] = None,
                 dark: Optional[bool] = ...,
                 classes: str = 'q-ma-md column items-start',
                 css: str = HtmlFormatter().get_style_defs('.codehilite'),
                 on_connect: Optional[Callable] = None,
                 on_disconnect: Optional[Callable] = None,
                 ):
        super(ManualTestPage, self).__init__(route, title, favicon, dark, classes, css, on_connect)
        self.on_disconnect_handler = on_disconnect

    async def on_disconnect(self, websocket=None):
        await super().on_disconnect(websocket)
        if self.on_disconnect_handler:
            await self.on_disconnect_handler() if is_coroutine(self.on_disconnect_handler) else self.on_disconnect_handler()