[Python] How can I access sub-surfaces inside a polysurface?

RhinoScriptSyntax or RhinoCommon?
What method?
Does it exist?

Depends a bit on exactly what you’re doing, but probably this:


Or this:


Edit: Just remembered this old post by David, might be helpful here in terms of the terminology:

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I’m trying to loop over all objects and extrude each based on some criteria.
However when my script stumbles onto a polysurface the extrude is only applied to a single sub-surface.