/**
  * Prevent creation of form settings page if you don't want them.
  *
  * We override `form_settings_init()` because it's available; `has_form_settings_page()` would
  * be preferred, but it's private.
  *
  * @return void
  */
 public function form_settings_init()
 {
     if (empty($this->_has_form_settings_page)) {
         return;
     }
     parent::form_settings_init();
 }