async def __call__(self, scope, receive, send):
websocket = WebSocket(scope=scope, receive=receive, send=send)
await websocket.accept()
await websocket.send_json(
{"URL": str(websocket.url_for("websocket_endpoint"))})
await websocket.close()
async def __call__(self, receive, send):
session = WebSocket(scope=self.scope, receive=receive, send=send)
await session.accept()
await session.send_json(
{"URL": str(session.url_for("WebsocketEndpoint"))})
await session.close()
