map -package:containers -package:charset -package:invertible -is:exact -package:base -package:basement -package:filepath -package:blaze-html -package:conduit is:exact 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.