algorithmic modeling for Rhino
Eh, what sort of thing is FuzzySet, what path does it imply, and how is Grasshopper supposed to know about AForge dlls?
I figured Data Path would not need to care about whatever is inside the tree. Anyway a Path Viewer does the job. It really doesn't matter!
You're looking for Tree Statistics. It outputs the paths that are present in a Tree. The Data Path parameter actually deals with paths the same way a number parameter deals with numbers; as data.