map -package:containers -package:foldl -package:base-prelude -package:Cabal-syntax -package:integration -is:exact -package:basement -package:bytestring -is:exact -package:aeson -package:psqueues -package:pipes -package:os-string -package:charset is:exact package:monoidal-containers
O(n) Transform this map by applying a function to every value.