map is:exact -package:vector -package:containers -package:basement -package:monoidal-containers -package:invertible -package:integration -package:amazonka-core -package:foldl -package:psqueues -package:base -package:case-insensitive -package:os-string -package:imports -package:base-compat-batteries -package:dlist package:charset

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