When you've caught all the exceptions that can be handled safely,
this is what you're left with.

It is intended that you use qualified imports with this library.

> import UnexceptionalIO (UIO)
> import qualified UnexceptionalIO as UIO

You may also wish to investigate unexceptionalio-trans if you like
monad transformers.

Blog post: http://sngpl.ma/p4uT0