No way to get page count of posts when paginating

[alanv73]

If I get posts by the page:

posts = widget.wordPress.fetchPosts(
     postParams: wp.ParamsPostList(
          perPage: postsPerPage,
          pageNum: currentPage,
     ),
     fetchAuthor: true,
     fetchFeaturedMedia: true,
);

There is no way to determine when I am on the last page of posts (or pages).