public override bool CanParse(Element elm)
{
var cats = new BuiltInCategory[] { BuiltInCategory.OST_ElectricalEquipment, BuiltInCategory.OST_ElectricalFixtures, BuiltInCategory.OST_LightingDevices, BuiltInCategory.OST_LightingFixtures, BuiltInCategory.OST_SecurityDevices, BuiltInCategory.OST_DataDevices, BuiltInCategory.OST_FireAlarmDevices, BuiltInCategory.OST_CommunicationDevices, BuiltInCategory.OST_NurseCallDevices, BuiltInCategory.OST_TelephoneDevices };
return(elm.Category != null?cats.Contains((BuiltInCategory)elm.Category.Id.IntegerValue) : false);
}