Function fetchUserSettings

test/README.example.spec.ts:1314–1315

(_userId: number)

    const fetchUserPosts = (userId: number) =>
      Effected.of([{ id: 1, title: `Post for ${userId}` }]);
    const fetchUserSettings = (_userId: number) =>
      Effected.of({ theme: "dark", notifications: true });

    const userData = await Effected.all({
      user: fetchUser(1),