toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (creationDate != null) 'creationDate': creationDate!,
if (merchantOrderId != null) 'merchantOrderId': merchantOrderId!,
if (orderId != null) 'orderId': orderId!,
if (orderReturnId != null) 'orderReturnId': orderReturnId!,
if (returnItems != null) 'returnItems': returnItems!,
if (returnPricingInfo != null) 'returnPricingInfo': returnPricingInfo!,
if (returnShipments != null) 'returnShipments': returnShipments!,
};