[Chimera-users] Obtaining the path to a currently loaded model or volume

Hi, I am trying to write an extension for a tool that requires PDB files or MRC structures as input. I would like to be able to pass the model or volume that is currently loaded in Chimera to this separate executable, but for this I need to get the file path to the model's object. Is this possible to do from the Python API? Thanks in advance, Ricardo Avila