anchor.diff:    @override
     // TODO: implement loadZones
     Map<String, int> get loadZones => throw UnimplementedError();
  -
   }
   
   //class Caiso extends Iso {
  
positive.code:   tz.Location preferredTimeZoneLocation = tz.getLocation('America/New_York');
  
    @override
    final Map<String,int> loadZones = {
      'AECO': 51291,
      'AEP': 8445784,
      'APS': 8394954,
  
negative.code:     'Zone K': 61762,
    };
  
    final loadZoneNameToPtid = <String, int>{
      'WEST': 61752,
      'CAPITL': 61757,
      'CENTRL': 61754,
      'DUNWOD': 61760,
      'GENESE': 61753,
      'HUD VL': 61758,
      'LONGIL': 61762,
      'MHK VL': 61756,
      'MILLWD': 61759,
      'N.Y.C.': 61761,
      'NORTH': 61755,
    };
  
    /// Allowed service types in this ISO
    @override
    final serviceTypes = <String>{
  