public static function AlterSoapComplexTypeArray(&$strComplexTypeArray)
 {
     if (!array_key_exists('ClassAttendence', $strComplexTypeArray)) {
         $strComplexTypeArray['ClassAttendence'] = ClassAttendence::GetSoapComplexTypeXml();
         ClassRegistration::AlterSoapComplexTypeArray($strComplexTypeArray);
     }
 }