map -package:containers -package:dlist -package:conduit -package:charset -package:insert-ordered-containers -package:case-insensitive -package:hedgehog -package:os-string -package:Cabal-syntax -is:exact -package:bytestring -package:foldl -package:base -package:aeson is:exact -package:integration -package:basement -package:vector package:vector-stream

Map a function over a Stream