toJson method Null safety
Implementation
Map<String, dynamic> toJson() {
final map = <String, dynamic>{};
map['janus'] = janus;
map['session_id'] = sessionId;
map['transaction'] = transaction;
map['sender'] = sender;
if (plugindata != null) {
map['plugindata'] = plugindata?.toJson();
}
return map;
}