how would I define a

fun <T>

where

<T>

is one of 2 or more unrelated classes? for example:

<T>

can be

<String>

or

Map<*,*>

but nothing else

if the map contains normal execution result and the string contains some error message or viceversa, you can use Either from funktionale https://github.com/MarioAriasC/funKTionale/wiki/Either

interesting, thanks

or

fun<T> funName() where T : String, T : Map<*,*>

@menegatti That won't work, it requires

T

to extend both

String

and

Map

, which is impossible since

String

is a final class.

good one, I completely missed that point

how about two overloads?

How about

T : someSealedClass

?