map is:exact -package:lens -package:bytestring -package:containers -package:insert-ordered-containers -package:invertible -package:monoidal-containers -package:base-compat -package:blaze-html -package:os-string -package:filepath -package:imports 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.