Is There a Way to Enforce a Pattern in Elixir?

A good example of y is business logic. A swiss aggregate aggregates its data from a bunch of events andd but it doesn't have any technical dedats in it. It's really just a by moge with a bunch of functons returning events. And then all o those ar enused by commanders. So while i haven't done it myself, this would be to to satl somewhat thisawo an a colpus,. which usesidous use commanded, and then, at the end of a day, kindle enforced this pattern on how you want to mutate your state.