map is:exact -package:text -package:base-compat-batteries -package:basement -package:Cabal-syntax -package:base-compat -package:bytestring -package:case-insensitive -package:incipit-base -package:containers -package:dlist -package:os-string -package:foldl package:monoidal-containers
O(n) Transform this map by applying a function to every value.