map -package:containers -package:Cabal-syntax is:exact -package:case-insensitive -package:base-compat-batteries -package:charset -package:dense-linear-algebra -package:incipit-base -package:dlist -package:base-prelude -package:insert-ordered-containers -package:os-string package:monoidal-containers
O(n) Transform this map by applying a function to every value.