map -package:containers -package:base -package:base-compat -package:dlist -package:invertible -package:incipit-base -package:base-prelude -package:hedgehog -package:filepath -package:blaze-html -package:insert-ordered-containers -package:Cabal-syntax package:charset

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