toJson method
Implementation
@override
Object toJson() => {
if (startTime case final startTime?) 'startTime': startTime.toJson(),
if (endTime case final endTime?) 'endTime': endTime.toJson(),
if (state.isNotDefault) 'state': state.toJson(),
if (cancellationRequested.isNotDefault)
'cancellationRequested': cancellationRequested,
if (request case final request?) 'request': request.toJson(),
if (progress.isNotDefault) 'progress': progress,
if (writerIdentity.isNotDefault) 'writerIdentity': writerIdentity,
};