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