toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (answer != null) 'answer': answer!,
if (confidenceScore != null) 'confidenceScore': confidenceScore!,
if (metadata != null) 'metadata': metadata!,
if (queryRecord != null) 'queryRecord': queryRecord!,
if (question != null) 'question': question!,
if (source != null) 'source': source!,
};