class SmileDeltaParameters {

  public double[] getVolatility() {
    return _volatility;
  }

  public  SmileDeltaParameters(final double timeToExpiration, final double[] delta, final double[] volatility);
  public  SmileDeltaParameters(final double timeToExpiry, final double atm, final double[] delta, final double[] riskReversal, final double[] strangle);

}