map -package:containers -package:basement -package:conduit -is:exact -package:base-prelude -package:bytestring is:exact -package:charset -package:psqueues -package:dlist -package:aeson -package:regex-tdfa -package:unordered-containers -package:base-compat package:monoidal-containers
O(n) Transform this map by applying a function to every value.