asMap method
Implementation
Map<String, dynamic> asMap() => {
if (responseCode != null) 'responseCode': responseCode,
if (responseDescription != null)
'responseDescription': responseDescription,
if (conversationID != null) 'conversationID': conversationID,
if (originatorConversationID != null)
'originatorConversationID': originatorConversationID,
if (merchantRequestID != null) 'merchantRequestID': merchantRequestID,
if (checkoutRequestID != null) 'checkoutRequestID': checkoutRequestID,
if (customerMessage != null) 'customerMessage': customerMessage,
if (resultCode != null) 'resultCode': resultCode,
if (resultDesc != null) 'resultDesc': resultDesc,
if (requestId != null) 'requestId': requestId,
if (errorCode != null) 'errorCode': errorCode,
if (errorMessage != null) 'errorMessage': errorMessage,
};