public function ScheduleParticipateEvents($arg)
 {
     // $arg : IdType == String = integer or this Array
     $this->CheckAndSetHeader(__FUNCTION__);
     $reg_args["event_id"] = $this->getRegularArgs($arg, __FUNCTION__);
     $this->encodeString($reg_args);
     $results = parent::ScheduleParticipateEvents($reg_args);
     $this->methodClose();
     if (isset($results->schedule_event)) {
         if (is_array($results->schedule_event)) {
             foreach ($results->schedule_event as $event) {
                 $ret_val[] = new CbgrnEventType($event);
             }
         } else {
             $ret_val[] = new CbgrnEventType($results->schedule_event);
         }
     } else {
         // no schedule found
     }
     return $this->decodeString($ret_val);
 }