map -package:containers -package:Cabal-syntax -package:base-prelude -package:charset -package:base -package:base-compat-batteries -package:base-compat is:exact -package:amazonka-core -package:dense-linear-algebra -package:case-insensitive -package:foldl package:monoidal-containers
O(n) Transform this map by applying a function to every value.