map is:exact -package:text -package:basement -package:integration -package:incipit-base -package:Cabal-syntax -package:case-insensitive -package:base-compat-batteries -package:filepath -package:dlist -package:dense-linear-algebra -package:invertible -package:base-prelude package:monoidal-containers
O(n) Transform this map by applying a function to every value.