toJson method
Implementation
Map<String, dynamic> toJson() {
final _json = <String, dynamic>{};
_json[r'order'] = order;
_json[r'file_infos'] = fileInfos;
if (nextFileId != null) {
_json[r'next_file_id'] = nextFileId;
}
if (prevFileId != null) {
_json[r'prev_file_id'] = prevFileId;
}
return _json;
}