toJson method
Implementation
@override
Object toJson() => {
if (noiseSigma != null) 'noiseSigma': encodeDouble(noiseSigma),
if (featureNoiseSigma != null)
'featureNoiseSigma': featureNoiseSigma!.toJson(),
if (noisySampleCount.isNotDefault) 'noisySampleCount': noisySampleCount,
};