map -package:containers -package:base-compat-batteries -package:foldl -package:Cabal-syntax -package:bytestring -package:pipes -package:base-compat -package:integration -package:invertible -package:case-insensitive -package:aeson -package:incipit-base package:charset

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