/**
  * Get menu by menu name
  * @param string $menu_name - menu name
  * @return string
  */
 private function getMenu($menu_name)
 {
     $menu_name = self::$DEV_MODE ? self::$MENU_NAME : $menu_name;
     $menu = AdminMenuBuilder::getMenu($menu_name, self::$MENU_TYPE);
     $modules = self::$DEV_MODE ? array() : $this->getModules();
     if ($menu) {
         $tpl = self::$DEV_MODE ? 'dev_menu' : 'menu';
         return CMSFactory\assetManager::create()->setData(array('menu' => $menu, 'modules' => $modules, 'SAAS' => self::$SAAS))->registerScript('admin_menu')->fetchAdminTemplate($tpl);
     }
 }