Overtrue\Pinyin\MemoryFileDictLoader::mapSurname PHP Метод

    public function mapSurname(Closure $callback)
    {
        if (empty($this->surnames)) {
            $surnames = $this->path . '/surnames';
            if (file_exists($surnames)) {
                $this->surnames = (array) (include $surnames);
            }
        }
        $callback($this->surnames);
    }