toJson method
Implementation
@override
Object toJson() => {
if (genericMetadata != null) 'genericMetadata': genericMetadata!.toJson(),
if (publisherModel.isNotDefault) 'publisherModel': publisherModel,
if (destination.isNotDefault) 'destination': destination,
if (projectNumber.isNotDefault) 'projectNumber': encodeInt64(projectNumber),
};