map is:exact -package:charset -package:basement -package:containers -package:ghc -package:hedgehog -package:foldl -package:aeson -package:blaze-html -package:bytestring -package:pipes package:psqueues

O(n) Modify every value in the queue.
O(n) Modify every value in the queue.
O(n) Modify every value in the queue.