map is:exact -package:text -package:basement -package:monoidal-containers -package:base -package:pipes -package:conduit -package:blaze-html -package:integration -package:base-prelude -package:os-string package:case-insensitive

map :: FoldCase s2 => (s1 -> s2) -> CI s1 -> CI s2
case-insensitive Data.CaseInsensitive
Transform the original string-like value but keep it case insensitive.