Passing an assocarray with function fields through callFunc on an interface functional field

I never found a way to do this with assocarrays, it's a bit frustrating coming from other languages.

If you pass nodes around instead of assocarrays, you can do foo.callFunc("stringify", {}).

Of course nodes are more painful to deal with, so it's not exactly ideal.

My strategy is to process incoming data as asocarrays within a single component then transform everything into node trees for use elsewhere in the app. No idea how other people approach it.