map -package:containers -package:insert-ordered-containers -package:incipit-base -package:base-compat-batteries -package:case-insensitive -package:Cabal-syntax -package:bytestring -package:invertible -package:aeson -package:os-string -package:base-prelude package:charset

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