map -package:containers -package:basement -package:conduit -is:exact -package:pipes -package:charset is:exact -package:filepath -package:invertible -package:imports -package:psqueues -package:ghc package:bytestring

O(n) map f xs is the ByteString obtained by applying f to each element of xs.
O(n) map f xs is the ByteString obtained by applying f to each element of xs
O(n) map f xs is the ShortByteString obtained by applying f to each element of xs.