async def healthcheck(res: Response, _: Request, __=None):
 res.write_status(200)
 return res.end_without_body(True)
def headers_mw(res: Response, _: Request, __=None):
 return res.write_header("Server", "myserver")
basic_router = MiddlewareRouter(app, headers_mw)
basic_router.head("/health", healthcheck)

HTTP/1.1 200 OK
Server: myserver
Connection: close
Date: 2024年5月25日 19:52:29 GMT
Server: uWebSockets_20