map is:exact -package:lens -package:dlist -package:base-compat-batteries -package:containers -package:invertible -package:charset -package:basement -package:incipit-base -package:filepath -package:os-string -package:ghc 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.