toMap method
Implementation
Map<String, dynamic> toMap() => {
if (direction != null) 'direction': direction,
if (amount != null) 'amount': amount,
if (currency != null) 'currency': currency,
if (currencyType != null) 'currencyType': currencyType,
if (amountInDefaultCurrency != null)
'amountInDefaultCurrency': amountInDefaultCurrency,
if (defaultCurrencyCode != null)
'defaultCurrencyCode': defaultCurrencyCode,
if (paymentDetails != null) 'paymentDetails': paymentDetails,
if (paymentTxnId != null) 'paymentTxnId': paymentTxnId,
if (type != null) 'type': type,
if (cryptoParams != null) 'cryptoParams': cryptoParams,
};