map -package:conduit -package:containers -is:exact -package:foldl -package:base-compat-batteries -package:filepath is:exact -package:invertible -package:charset -package:basement 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.