map is:exact -package:lens -package:bytestring -package:base-compat-batteries -package:containers -package:ghc -package:filepath -package:Cabal-syntax -package:case-insensitive -package:imports -package:dlist -package:basement 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.