Are you serious? Do you honestly think that I am talking about a schema for passing empty lists around?

If you are passing around lists of structured objects, I need you to send me what those objects are supposed to look like even if the list is empty sometimes. If you say "ok so sometimes I'll give you an object with a schema key and a list of data, other times I will just give you an empty list because I don't feel like it", everyone will hate you.