public function NotificationGetNotificationHistoriesById($notification_history_id)
 {
     // $notification_history_id : CbgrnNotificationIdType class or this array
     $this->CheckAndSetHeader(__FUNCTION__);
     $reg_args["notification_history_id"] = $this->getRegularArgs($notification_history_id, __FUNCTION__, "CbgrnNotificationIdType");
     $this->encodeString($reg_args);
     $results = parent::NotificationGetNotificationHistoriesById($reg_args);
     $this->methodClose();
     return $this->decodeString($results->notification_history);
 }