:: Ord a => [a] -> [a] -package:containers is:exact -package:base -package:witherable -package:incipit-base -package:hedgehog -package:statistics -package:imports package:lifted-base

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