toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (creationDate != null) 'creationDate': creationDate!,
if (deliveryDate != null) 'deliveryDate': deliveryDate!,
if (returnMethodType != null) 'returnMethodType': returnMethodType!,
if (shipmentId != null) 'shipmentId': shipmentId!,
if (shipmentTrackingInfos != null)
'shipmentTrackingInfos': shipmentTrackingInfos!,
if (shippingDate != null) 'shippingDate': shippingDate!,
if (state != null) 'state': state!,
};