map -package:containers -package:base -package:Cabal-syntax -package:base-compat -package:aeson -is:exact -package:hedgehog -package:imports -package:base-compat-batteries -package:bytestring -package:foldl -package:amazonka-core -package:monoidal-containers -package:invertible package:charset

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