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