map -package:containers -package:case-insensitive -package:dlist -is:exact -package:charset is:exact -package:blaze-html -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.