map is:exact -package:lens -package:bytestring -package:containers -package:insert-ordered-containers -package:imports -package:base-compat -package:aeson -package:dlist -package:basement -package:conduit -package:invertible 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.