map -package:containers -package:base -is:exact -package:imports -package:conduit -is:exact -package:incipit-base -package:insert-ordered-containers -package:foldl -package:aeson -package:bytestring -package:base-compat -package:hedgehog -package:monoidal-containers -package:ghc -package:invertible package:charset

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