public function ScheduleGetFacilityGroupsVersions($facility_item)
 {
     // $facility_item : ItemVersionType or this Array
     $this->CheckAndSetHeader(__FUNCTION__);
     $reg_args["facility_item"] = $this->getRegularArgs($facility_item, __FUNCTION__, "CbgrnItemVersionType");
     $this->encodeString($reg_args);
     $results = parent::ScheduleGetFacilityGroupsVersions($reg_args);
     $this->methodClose();
     return $this->RetvalConvertArray($results->facility_group_item);
     // returns array of stdClass
 }