> it's fairly common for the unit of reuse to be below service methods. In terms of utility functions or serializers? What does that look like exactly? E.g. i

> it's fairly common for the unit of reuse to be below service methods. In terms of utility functions or serializers? What does that look like exactly? E.g. in our codebase service methods can call helper methods (non-reusable), utility methods (reusable), and serializers (non-reusable).