readAll method
Implementation
@override
Future<List<T>> readAll({
String? key,
List<String>? nodeRoute,
}) async {
final jsonData = await _storage.read(key: key ?? _storageKey);
final entities = _serializer.decodeList(jsonData, nodeRoute: nodeRoute);
return entities
.map((entity) => _validateEntity(entity, 'readAll'))
.toList(growable: true);
}