I am looking to read the inputs of UDFS.

Standard features' inputs are accessible via GetAttribute. For example, Offset Planes and Symmetries expose the elements they are dependent on. It seems that UDF's do not, or perhaps I am missing something. 

I am not looking to expose the internal logic of the UDF. It is clear why this would not be permitted, but the inputs are readable to any users.

Any insight is appreciated.