toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (displayName != null) 'displayName': displayName!,
if (insertionOrderId != null) 'insertionOrderId': insertionOrderId!,
if (lineItemType != null) 'lineItemType': lineItemType!,
if (mobileApp != null) 'mobileApp': mobileApp!,
};