map is:exact -package:text -package:conduit -package:base-prelude -package:case-insensitive -package:aeson -package:blaze-html -package:basement -package:Cabal-syntax -package:foldl -package:ghc -package:bytestring -package:base-compat-batteries package:monoidal-containers
O(n) Transform this map by applying a function to every value.