map -package:containers -package:insert-ordered-containers -package:monoidal-containers -package:basement -package:foldl -package:imports -package:os-string -package:Cabal-syntax -package:bytestring -package:regex-tdfa -package:base-compat-batteries -package:dlist package:case-insensitive
Transform the original string-like value but keep it case insensitive.