map -package:containers -package:charset -package:invertible -is:exact -is:exact -package:dlist is:exact -package:aeson -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.