map -package:containers -package:bytestring -package:aeson -package:base-compat-batteries -package:monoidal-containers -package:dense-linear-algebra -package:base-compat -package:insert-ordered-containers -package:case-insensitive -package:dlist -package:ghc package:charset

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