map -package:containers -package:base-compat -package:insert-ordered-containers -package:Cabal-syntax -package:monoidal-containers -package:ghc -package:incipit-base -package:os-string -package:case-insensitive -package:hedgehog -package:aeson package:charset

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