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,
};