map -package:containers -package:conduit -is:exact -package:aeson -package:bytestring -package:insert-ordered-containers -package:monoidal-containers -package:incipit-base -package:filepath -package:dlist -package:os-string -package:base-prelude -package:psqueues -package:text -package:hedgehog package:charset

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