map -package:containers -package:insert-ordered-containers -package:monoidal-containers -package:basement -package:blaze-html -is:exact -package:bytestring -package:integration -package:base-compat-batteries -package:hedgehog -package:foldl -package:psqueues -package:aeson -package:incipit-base -package:base-prelude package:charset

map :: (Char -> Char) -> CharSet -> CharSet
charset Data.CharSet