map is:exact -package:text -package:Cabal-syntax -package:charset -package:containers -package:conduit -package:incipit-base -package:case-insensitive -package:invertible -package:dense-linear-algebra -package:insert-ordered-containers -package:hedgehog -package:blaze-html package:monoidal-containers
O(n) Transform this map by applying a function to every value.