map is:exact -package:lens -package:aeson -package:base-compat-batteries -package:case-insensitive -package:dlist -package:basement -package:base -package:monoidal-containers -package:invertible -package:charset -package:conduit 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.