Mailgun\Mailgun::MessageBuilder PHP Method

    public function MessageBuilder()
    {
        return new MessageBuilder();
    }

 /**
  * @param int|array|\DateTime|Carbon $time
  * @param string|array               $view
  * @param array                      $data
  * @param \Closure                   $callback
  *
  * @return \Bogardo\Mailgun\Http\Response
  */
 public function later($time, $view, array $data, Closure $callback)
 {
     $message = new Message($this->mailgun->MessageBuilder(), $this->config);
     $message->builder()->setDeliveryTime($this->parseTime($time), $this->config->get('app.timezone', 'UTC'));
     return $this->send($view, $data, $callback, $message);
 }