ManaPHP\Mvc\View\Flash::__construct PHP Метод

    public function __construct($cssClasses = [])
    {
        $this->_cssClasses = count($cssClasses) !== 0 ? $cssClasses : ['error' => 'flash-error', 'notice' => 'flash-notice', 'success' => 'flash-success', 'warning' => 'flash-warning'];
    }

 /**
  * Session constructor.
  *
  * @param array $cssClasses
  */
 public function __construct($cssClasses = [])
 {
     parent::__construct($cssClasses);
     $defaultMessages = [];
     $this->_messages = (array) $this->session->get($this->_sessionKey, $defaultMessages);
     $this->session->remove($this->_sessionKey);
 }