| Name | Type | Description | Notes |
|---|---|---|---|
| units | [RawUnit] | [optional] | |
| definitions | [RawDefinition] | [optional] | |
| propertySets | [RawPropertySet] | [optional] | |
| classifications | [RawClassification] | [optional] | |
| layers | [RawLayer] | [optional] | |
| systems | [RawSystem] | [optional] | |
| materials | RawMaterialList | [optional] | |
| elements | [RawElement] |