map -package:containers -package:aeson -package:basement -package:psqueues -package:regex-tdfa -package:dense-linear-algebra -package:base-prelude -package:ghc -package:foldl -package:amazonka-core -package:pipes -package:base-compat -package:case-insensitive -package:insert-ordered-containers package:charset

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