Consider defining metadata defaults e.g if submeter_of isn't set then default to 0. And meter devices could have a "default_for_upstream" setting which would mean that individual meters wouldn't have to specify which MeterDevice they are an instance of.
Consider defining metadata defaults e.g if
submeter_of
isn't set then default to 0. And meter devices could have a "default_for_upstream" setting which would mean that individual meters wouldn't have to specify which MeterDevice they are an instance of.