/**
  * @api            {get} /posts/:postId/likes Get Post Likers
  * @apiGroup       Likes
  * @apiDescription Get who liked a post.
  *
  * @param Post $post
  *
  * @return \Illuminate\Http\Response
  */
 public function index(Post $post)
 {
     $likes = $post->likes();
     $paginator = $likes->paginate($this->getResultsPerPage());
     return $this->response($this->paginatorToArray($paginator, 'likes'));
 }