anchor.diff:    @override
     // TODO: implement loadZones
     Map<String, int> get loadZones => throw UnimplementedError();
  -
   }
   
   //class Caiso extends Iso {
  
positive.code:     'Zone K': 61762,
    };
  
    /// Allowed service types in this ISO
    @override
    final serviceTypes = <String>{
  
negative.code:   tz.Location preferredTimeZoneLocation = tz.getLocation('America/New_York');
  
    @override
    final Map<String, int> loadZones = {
      'AECO': 51291,
      'AEP': 8445784,
      'APS': 8394954,
  