map -package:containers is:exact -package:conduit -package:charset -package:monoidal-containers -package:psqueues -package:filepath -package:case-insensitive -package:invertible -package:aeson 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.