toJson method
Converts the object to a map.
Implementation
@override
Map<String, dynamic> toJson() {
  final map = super.toJson();
  map['runId'] = runId;
  map['threadId'] = threadId;
  map['text'] = text;
  map['toolCallId'] = toolCallId;
  map['tags'] = tags ?? [];
  return map;
}