    public function load($json)
    {
        if ($json instanceof JsonFile) {
            $config = $json->read();
        } elseif (file_exists($json)) {
            $config = JsonFile::parseJson(file_get_contents($json), $json);
        } elseif (is_string($json)) {
            $config = JsonFile::parseJson($json);
        }

        return $this->loader->load($config);
    }