map -package:containers -package:basement -package:base-compat-batteries -package:psqueues -package:pipes -package:blaze-html -package:filepath -package:invertible 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.