scalaz.effect
A monad transformer in which scarce resources can be opened. When the region terminates, all opened resources will be closed automatically. It's a type error to return an opened resource from the region, and no I/O with closed resources is possible.
A monad transformer in which scarce resources can be opened. When the region terminates, all opened resources will be closed automatically. It's a type error to return an opened resource from the region, and no I/O with closed resources is possible.