public function addEditList($listId, array $options)
    {
        $xml = "<options>";

        foreach ($options as $option) {
            $xml .= "<option";

            if (isset($option['id'])) {
                $xml .= " id=\"{$option['id']}\"";
            }

            if (isset($option['archived'])) {
                $xml .= " archived=\"{$option['archived']}\"";
            }

            $xml .= ">{$option['value']}</option>";
        }

        $xml .= "</options>";

        return $this->put("meta/lists/{$listId}", $xml);
    }