map -package:containers -is:exact -package:foldl -package:basement -package:invertible -package:charset -package:hedgehog -is:exact -package:aeson -package:pipes -package:conduit is:exact 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.