class AddFixedCurve implements Curve, ImmutableBean, Serializable {

  public static AddFixedCurve of(Curve fixedCurve, Curve spreadCurve) {
    return new AddFixedCurve(fixedCurve, spreadCurve);
  }

  private  AddFixedCurve(
      Curve fixedCurve,
      Curve spreadCurve);

}