public override object Clone()
{
var result = base.Clone() as PaymentIn;
result.PaymentMethod = PaymentMethod?.Clone() as PaymentMethod;
result.BillingAddress = BillingAddress?.Clone() as Address;
result.ProcessPaymentResult = ProcessPaymentResult?.Clone() as ProcessPaymentRequestResult;
result.Transactions = Transactions?.Select(x => x.Clone()).OfType <PaymentGatewayTransaction>().ToList();
result.Discounts = Discounts?.Select(x => x.Clone()).OfType <Discount>().ToList();
result.TaxDetails = TaxDetails?.Select(x => x.Clone()).OfType <TaxDetail>().ToList();
return(result);
}