Hey guys, I played a bit with `StateT` APi. <https...

# arrow

[simon.vergauwen]

Hey guys, I played a bit with StateT APi. https://github.com/kategory/kategory/compare/simon-statet-docs
So you can achieve following code. https://gist.github.com/nomisRev/89004d77d548dd9910725bf63077a556
i.e. lifting fun pop(stack: Stack): Either<String, Tuple2<Stack, Int>> to StateT<EitherHK, String, Stack> with ::pop.stateT()