map -package:containers -package:base-compat -package:insert-ordered-containers -package:Cabal-syntax -package:monoidal-containers -package:ghc -package:incipit-base -package:filepath -package:dense-linear-algebra -package:base-prelude -package:foldl package:charset

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