map is:exact -package:containers -package:bytestring -package:foldl -package:basement -package:base -package:imports -package:invertible -package:pipes -package:conduit -package:aeson -package:hedgehog 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.