map is:exact -package:text -package:containers -package:foldl -package:ghc -package:basement -package:conduit -package:hedgehog -package:dlist -package:pipes -package:Cabal-syntax -package:incipit-base -package:psqueues -package:monoidal-containers -package:base -package:vector -package:filepath -package:imports -package:os-string -package:regex-tdfa package:vector-stream

Map a function over a Stream