map is:exact -package:conduit -package:basement -package:case-insensitive -package:dense-linear-algebra -package:monoidal-containers -package:dlist -package:invertible -package:containers -package:psqueues -package:filepath -package:incipit-base -package:foldl -package:unordered-containers -package:vector package:vector-stream

Map a function over a Stream