map -package:containers -package:basement -package:conduit -is:exact -package:aeson -package:charset -is:exact -package:ghc -package:pipes -package:invertible is:exact -package:psqueues 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.