question: get the initial heading . concode_field_sep VehicleSpec vehicleSpec concode_elem_sep double currentTime concode_elem_sep Rectangle2D noVehicleZone concode_elem_sep double acceleration concode_elem_sep Point2D pos concode_elem_sep double heading concode_elem_sep double steeringAngle concode_elem_sep double spawnTime concode_elem_sep Road destinationRoad concode_elem_sep Lane lane concode_elem_sep SpawnSpecGenerator vehicleSpecChooser concode_field_sep double getSpawnTime concode_elem_sep List<SpawnSpec> act concode_elem_sep List<SpawnSpec> act concode_elem_sep Point2D getPosition concode_elem_sep Lane getLane concode_elem_sep void setVehicleSpecChooser concode_elem_sep double getAcceleration concode_elem_sep Rectangle2D getNoVehicleZone concode_elem_sep double getSteeringAngle concode_elem_sep Road getDestinationRoad concode_elem_sep VehicleSpec getVehicleSpec concode_elem_sep double getCurrentTime
target: double function ( ) { return heading ; }