code: public function init()
      {
          parent::init();
          $this->mutexPath = Yii::getAlias($this->mutexPath);
          if (!is_dir($this->mutexPath)) {
              FileHelper::createDirectory($this->mutexPath, $this->dirMode, true);
          }
          if ($this->isWindows === null) {
              $this->isWindows = DIRECTORY_SEPARATOR === '\\';
          }
      }
docs: Initializes mutex component implementation dedicated for UNIX, GNU/Linux, Mac OS X, and other UNIX-like
  operating systems.
  @throws InvalidConfigException