The namespace contains class that is a multiple part reference to a resource. 
Used to indicate prior versions, originals of renditions, originals for derived documents, and so on.

### Classes
| Class | Description |
| :- | :- |
| [`ResourceRef`](/cad/python-net/aspose.cad.xmp.types.complex.resourceref/resourceref) | Used to indicate prior versions, originals of renditions, originals for derived documents, and so on. |