code: public double getValue(int maturityInMonths, int tenorInMonths, int moneynessBP, QuotingConvention convention, double displacement, AnalyticModel model) {
  		DataKey key = new DataKey(maturityInMonths, tenorInMonths, moneynessBP);
  		return convertToConvention(getValue(key), key, convention, displacement, quotingConvention, this.displacement, model);
  	}
docs: Return the value in the given quoting convention.
  Conversion involving receiver premium assumes zero wide collar.
  
  @param maturityInMonths The maturity of the option as offset in months from the reference date.
  @param tenorInMonths The tenor of the swap as offset in months from the option maturity.
  @param moneynessBP The moneyness in basis points on the par swap rate, as understood in the original convention.
  @param convention The desired quoting convention.
  @param displacement The displacement to be used, if converting to log normal implied volatility.
  @param model The model for context.
  
  @return The value converted to the convention.