message: type: useRequest url optional
diff: @@ -9,7 +9,7 @@ export type Subscribe<R, P extends any[]> = (data: FetchResult<R, P>) => void;
  export type Mutate<R> = (x: R | undefined | ((data: R) => R)) => void;
  export interface RequestServiceObject extends RequestInit {
  - readonly url: string;
  + url?: string;
  [key: string]: any; // backward compatibility
  }
  export type RequestService = string | RequestServiceObject;
  