private static function loadPackage(string $package): stdClass {
    $language = new stdClass();
    if (!empty($package)) {
      $filename = null;
      if ($packageData = explode(":", $package)) {
        if (!empty($packageData[0])) {
          $filename .= Lang::$root[$packageData[0]];
        }
        if (!empty($packageData[1])) {
          $filename .= DIRECTORY_SEPARATOR . $packageData[1];
        }
        $pathaname = Lang::selectPackage($filename);
        if (file_exists($pathaname)) {
          $pathaname = Path::replaceOSSeparator($pathaname);
          $decode = json_decode(file_get_contents((new SplFileObject($pathaname, "r"))->getPathname()));
          $language = (JSON_ERROR_NONE == json_last_error()) ? $decode : $language;
        }
      }
    }
    return $language;
  }