<@U4DB4PJ72> I actually don't know. it seems I can't use `IO<Boolean>` anymore :thinking_face:

# arrow

[ivanmorgillo]

@melatonina I actually don't know.
it seems I can't use IO<Boolean> anymore 🤔

[melatonina]

I suspect that IO<A, B> and IO<T> are defined in two different places and you have access only to IO<A, B> there.