public function _message($type, $message)
{
$cssClasses = isset($this->_cssClasses[$type]) ? $this->_cssClasses[$type] : '';
$defaultMessages = [];
$messages = $this->session->get($this->_sessionKey, $defaultMessages);
$messages[] = '<div class="' . $cssClasses . '">' . $message . '</div>' . PHP_EOL;
$this->session->set($this->_sessionKey, $messages);
}