/**
  * Prepare links for the request.
  *
  * @param WP_Post $post Post object.
  * @return array Links for the given post.
  */
 protected function prepare_links($post)
 {
     $links = parent::prepare_links($post);
     $filter_name = "rooftop_prepare_{$post->post_type}_links";
     $links = apply_filters($filter_name, $links, $post);
     return $links;
 }