map -package:containers -package:base-compat -package:blaze-html -package:imports -package:ghc -package:case-insensitive -package:dlist -package:insert-ordered-containers -package:charset -package:hedgehog -package:invertible -package:base-compat-batteries package:monoidal-containers is:exact
O(n) Transform this map by applying a function to every value.