case 'instanceId': return compare(a.id, b.id, isAsc);
case 'ric': return compare(a.ric, b.ric, isAsc);
case 'service': return compare(a.service, b.service, isAsc);
case 'instanceId': return compare(a.id, b.id, isAsc);
case 'ric': return compare(a.ric, b.ric, isAsc);
case 'service': return compare(a.service, b.service, isAsc);