On: Flutter 2

[oblio]

Versus a sort of:

my_type = my_list | my_object

?

You can see why this is better :-)

[mixmastamyk → oblio]

I'd always return a list. Makes the client code simpler.

[oblio → mixmastamyk]

You would. But not every input comes from you :-)

[okamiueru → oblio]

All I can say is that it is certainly neat :)