map -package:containers -package:charset -package:foldl -package:base-prelude -package:base-compat -package:basement -package:os-string -package:ghc -package:psqueues -package:integration -package:invertible -package:bytestring -package:imports -package:pipes -is:exact -package:monoidal-containers is:exact 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.