toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (candidates != null) 'candidates': candidates!,
if (createTime != null) 'createTime': createTime!,
if (modelVersion != null) 'modelVersion': modelVersion!,
if (promptFeedback != null) 'promptFeedback': promptFeedback!,
if (responseId != null) 'responseId': responseId!,
if (usageMetadata != null) 'usageMetadata': usageMetadata!,
};