map is:exact -package:lens -package:charset -package:basement -package:bytestring -package:invertible -package:containers -package:imports -package:base-prelude -package:base-compat-batteries -package:incipit-base -package:Cabal-syntax 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.