:: Ord a => [a] -> [a] is:exact -package:ghc -package:imports -package:containers -package:base -package:lens -package:witherable -package:extra -package:basement package:lifted-base

Generalized version of runInBoundThread.
Generalized version of runInUnboundThread.
Generalized version of mask_.
Generalized version of uninterruptibleMask_.