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

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