map is:exact -package:ghc -package:containers -package:base -package:invertible -package:case-insensitive -package:charset -package:blaze-html -package:basement -package:monoidal-containers -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.