:: Ord a => [a] -> [a] -package:Glob -package:statistics -package:mono-traversable -package:base -package:integration -package:lens -package:ghc package:lifted-base is:exact

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