map is:exact -package:text -package:dense-linear-algebra -package:ghc -package:foldl -package:basement -package:Cabal-syntax -package:base-compat-batteries -package:containers -package:base-compat -package:invertible -package:os-string -package:blaze-html package:monoidal-containers
O(n) Transform this map by applying a function to every value.