public static function initialize()
 {
     if (!wskl_license_authorized('marketing')) {
         return;
     }
     /**
      * 블로그 자동 포스팅 메타 박스
      */
     add_action('add_meta_boxes', array(__CLASS__, 'meta_box_post_export'), 10, 0);
     add_action('save_post', array(__CLASS__, 'callback_save_post'), 99, 3);
 }
 /**
  * @param $license_type
  * @param mixed $tabs
  * @param $callback
  *
  * @used-by Woosym_Korean_Localization::init_payment_modules()
  * @used-by Woosym_Korean_Localization::init_essential_modules()
  * @used-by Woosym_Korean_Localization::init_extension_modules()
  * @used-by Woosym_Korean_Localization::init_marketing_modules()
  *
  * @return bool
  */
 private function admin_notice_unauthorized($license_type, $tabs, $callback)
 {
     $authorized = wskl_license_authorized($license_type);
     if (!$authorized && $this->is_request('admin')) {
         if (is_string($tabs)) {
             $tabs = array($tabs);
         }
         $page = wskl_GET('page');
         $_tab = wskl_GET('tab');
         if ($page == WSKL_MENU_SLUG && in_array($_tab, $tabs)) {
             add_action('admin_notices', $callback);
         }
     }
     return $authorized;
 }