map is:exact -package:lens -package:dense-linear-algebra -package:base-compat -package:base -package:basement -package:aeson -package:containers -package:imports -package:foldl -package:integration -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.