map is:exact -package:lens -package:aeson -package:bytestring -package:basement -package:base-compat-batteries -package:incipit-base -package:hedgehog -package:dlist -package:containers -package:base -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.