Conditional return on the scope the function is runing in

[C0smin]

Hello,

I would like to have a function be dependent on the scope it is running in and return something based on that.
I have hoped I could cheat and use this:
func scopedReturn() string => subscription().id ?? resourceGroup().id
but this immediately fails and it doesn't even cover the full range of scopes possible.

Is it possible using the current language or would something need to be developed for this to work?