map is:exact -package:text -package:containers -package:bytestring -package:case-insensitive -package:invertible -package:dlist -package:incipit-base -package:base-compat-batteries -package:hedgehog -package:ghc -package:conduit -package:base-prelude package:monoidal-containers
O(n) Transform this map by applying a function to every value.