/**
  * 	Get WP default users columns per post type.
  *
  * 	@since     1.1
  */
 private function get_wp_default_users_columns()
 {
     // You can use this filter to add third_party columns by hooking into this.
     do_action('cpac-get-default-columns-users');
     if (file_exists(ABSPATH . 'wp-admin/includes/class-wp-list-table.php')) {
         require_once ABSPATH . 'wp-admin/includes/class-wp-list-table.php';
     }
     if (file_exists(ABSPATH . 'wp-admin/includes/class-wp-users-list-table.php')) {
         require_once ABSPATH . 'wp-admin/includes/class-wp-users-list-table.php';
     }
     // turn off site users
     $this->is_site_users = false;
     // get users columns
     $columns = WP_Users_List_Table::get_columns();
     // change to uniform format
     $columns = $this->get_uniform_format($columns);
     return apply_filters('cpac-default-users-columns', $columns);
 }