map -package:containers -package:Cabal-syntax -package:base-prelude -package:bytestring -package:blaze-html -package:pipes -package:base-compat -package:filepath -package:insert-ordered-containers -package:invertible -package:base-compat-batteries -package:basement is:exact package:monoidal-containers
O(n) Transform this map by applying a function to every value.