Function getUserPostsPipe

test/README.example.spec.ts:1558–1562

(userId: number)

    // Pipeline syntax
    const getUserPostsPipe = (userId: number) =>
      fetchUser(userId).andThen((user) => {
        if (!user) return null;
        return fetchPosts(user.id);
      });

    // Test getUserPosts - user exists
    const userPostsGen = getUserPostsGen(1)