def send_video(self, recipient_id, video_path, notification_type=NotificationType.regular):
        """Send video to the specified recipient.
        Video should be MP4 or MOV, but supports more (https://www.facebook.com/help/218673814818907).
        https://developers.facebook.com/docs/messenger-platform/send-api-reference/video-attachment
        Input:
            recipient_id: recipient id to send to
            video_path: path to video to be sent
        Output:
            Response from API as <dict>
        """
        return self.send_attachment(recipient_id, "video", video_path, notification_type)
Send video to the specified recipient.
        Video should be MP4 or MOV, but supports more (https://www.facebook.com/help/218673814818907).
        https://developers.facebook.com/docs/messenger-platform/send-api-reference/video-attachment
        Input:
            recipient_id: recipient id to send to
            video_path: path to video to be sent
        Output:
            Response from API as <dict>