SceneMetadata.fromJson constructor
Creates a SceneMetadata object from the JSON response to a GET request.
Implementation
factory SceneMetadata.fromJson(Map<String, dynamic> dataMap) {
  return SceneMetadata(
    name: dataMap[ApiFields.name] ?? '',
    image: Relative.fromJson(
        Map<String, dynamic>.from(dataMap[ApiFields.image] ?? {})),
  );
}