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