public function dataScaffold($spec = null)
    {
        $data = collect($this->data)->reject(function ($value, $key) use ($spec) {
            if ($spec == 'migration') {
                return !str_contains($key, 'opt');
            }

            return !str_contains($key, 'atr');
        });

        return array_values($data->toArray());
    }