map -package:base-compat -is:exact -package:basement -package:bytestring -package:aeson -package:filepath -package:dlist -package:case-insensitive -package:monoidal-containers -package:pipes is:exact -package:psqueues -package:os-string -package:insert-ordered-containers package:charset

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