map is:exact -package:lens -package:aeson -package:containers -package:insert-ordered-containers -package:base-compat-batteries -package:basement -package:invertible -package:base-compat -package:base -package:pipes -package:blaze-html 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.