enum IfcServiceLifeTypeEnum {
kIfcServiceLifeTypeEnum_ACTUALSERVICELIFE,
kIfcServiceLifeTypeEnum_EXPECTEDSERVICELIFE,
kIfcServiceLifeTypeEnum_OPTIMISTICREFERENCESERVICELIFE,
kIfcServiceLifeTypeEnum_PESSIMISTICREFERENCESERVICELIFE,
kIfcServiceLifeTypeEnum_REFERENCESERVICELIFE,
kIfcServiceLifeTypeEnum_unset
};