map -package:containers -is:exact -package:foldl -package:charset -package:invertible -package:conduit -package:basement -is:exact -package:psqueues -package:blaze-html 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.