that's also my question. when you call a function ...

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[Lucas Ł]

that's also my question. when you call a function without defining a return type, it 'returns' Unit.

So basically the only way that I can see it being callable, would be an extension to `Unit`:

fun foo(){}
fun Unit.bar(){}

and calling it

foo().bar()

I'm more interested in the reason... what exactly are you trying to accomplish? 😂

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Nevermind, I just realized you can call fun ((String)->Unit).bar(){} like so:

val foo: ((String)->Unit) = {}
foo.bar()