如何在Prestashop模块中初始化语言索引？

class YourModuleName extends Module
{
    public function __construct()
    {
        $this->name = 'yourmodulename';
        $this->tab = 'front_office_features';
        $this->version = '1.0.0';
        $this->author = 'Your Name';
        $this->need_instance = 0;

        parent::__construct();

        $this->displayName = $this->l('Your Module Name');
        $this->description = $this->l('Description of your module.');

        // 初始化语言索引
        $this->initContext();
    }

    public function initContext()
    {
        // 获取当前语言
        $currentLanguage = Language::getIsoById((int)Configuration::get('PS_LANG_DEFAULT'));

        // 加载语言文件
        if (file_exists($this->getLocalPath().'translations/'.$currentLanguage.'.php')) {
            include($this->getLocalPath().'translations/'.$currentLanguage.'.php');
        }

        // 将语言索引赋值给模块
        if (isset($translations) && is_array($translations)) {
            foreach ($translations as $key => $value) {
                $this->l_values[$key] = $value;
            }
        }
    }
}