copyWith method
Implementation
RouteExitSignRouteEntry copyWith({
  RoutePoint? point,
  RouteExitSign? value
}) {
  return RouteExitSignRouteEntry(
    point: point ?? this.point,
    value: value ?? this.value
  );
}RouteExitSignRouteEntry copyWith({
  RoutePoint? point,
  RouteExitSign? value
}) {
  return RouteExitSignRouteEntry(
    point: point ?? this.point,
    value: value ?? this.value
  );
}