class SmileDeltaParameters implements ParameterizedData, ImmutableBean, Serializable {

  public static SmileDeltaParameters of(double expiry, DoubleArray delta, DoubleArray volatility) {
    return of(expiry, delta, volatility, createParameterMetadata(expiry, null, delta));
  }

  private  SmileDeltaParameters(
      double expiry,
      DoubleArray delta,
      DoubleArray volatility,
      List<ParameterMetadata> parameterMetadata);

}