TrainPosition constructor
const
TrainPosition({})
Creates a new TrainPosition object.
Implementation
const TrainPosition({
required this.numCars,
required this.circuitId,
this.destinationStationCode,
required this.directionNum,
this.lineCode,
required this.secondsAtLocation,
required this.serviceType,
required this.trainId,
required this.trainNumber,
});