map -package:containers -package:base-compat -package:Cabal-syntax -package:basement -package:base-prelude -package:hedgehog -package:dense-linear-algebra -package:os-string -package:ghc -package:psqueues -package:invertible -package:bytestring -package:pipes package:charset

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