An interface can only extend an identifier/qualified-name with optional type arguments. ts(2499)
express.RequestHandler
接口不支持异步函数。上面写着
The return type of an async function or method must be the global Promise<T> type. Did you mean to write 'Promise<RequestHandler<ParamsDictionary, any, any, ParsedQs, Record<string, any>>>'?ts(1064)