:: Ord a => [a] -> [a] is:exact -package:Glob -package:errors -package:safe -package:integration -package:statistics -package:extra -package:basement -package:witherable package:lifted-base

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