public function notify($description = '', $options = array())
{
$this->_register();
$defaults = array('sticky' => false, 'priority' => 0, 'type' => 'Messages');
$options += $defaults + array('title' => $this->_config['title']);
$type = $options['type'];
$title = $options['title'];
$message = compact('type', 'title', 'description') + array('app' => $this->_config['name']);
$message = array_map('utf8_encode', $message);
$flags = ($options['priority'] & 7) * 2;
$flags = $options['priority'] < 0 ? $flags |= 8 : $flags;
$flags = $options['sticky'] ? $flags | 256 : $flags;
$params = array('c2n5', static::PROTOCOL_VERSION, static::TYPE_NOTIFY, $flags);
$lengths = array_map('strlen', $message);
$data = call_user_func_array('pack', array_merge($params, $lengths));
$data .= join('', $message);
$data .= pack('H32', md5($data . $this->_config['password']));
$this->_send($data);
return true;
}