map is:exact -package:text -package:base-compat-batteries -package:ghc -package:case-insensitive -package:charset -package:dlist -package:amazonka-core -package:incipit-base -package:insert-ordered-containers -package:dense-linear-algebra -package:basement -package:aeson package:monoidal-containers
O(n) Transform this map by applying a function to every value.