map -package:containers -package:base-prelude -package:foldl -package:blaze-html -package:basement -package:invertible -package:monoidal-containers -package:pipes package:bytestring is:exact

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.