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