map -package:containers -package:ghc -is:exact -package:basement -package:insert-ordered-containers -package:incipit-base -package:base-compat -is:exact -package:os-string -package:psqueues package:conduit is:exact

Apply a transformation to all values in a stream. Subject to fusion
Apply a transformation to all values in a stream. Subject to fusion Since 0.3.0