private function format($result, $count, $offset, $limit)
    {
        $nodes = [];
        foreach ($result as $item) {
            $resource = $this->getResource($item);
            $data = $this->getResourceData($resource);
            if ($data) {
                $nodes[] = $data;
            }
        }
        return [
            'total'  => $count,
            'offset' => $offset,
            'limit'  => $limit,
            'nodes'  => $nodes
        ];
    }