map is:exact -package:text -package:base-compat-batteries -package:charset -package:blaze-html -package:bytestring -package:basement -package:dense-linear-algebra -package:hedgehog -package:aeson -package:base-compat -package:imports -package:incipit-base package:monoidal-containers
O(n) Transform this map by applying a function to every value.