def download_video(self, media_id, filename, media=False, folder='videos'):
    if not media:
        self.media_info(media_id)
        media = self.last_json['items'][0]
    filename = '{0}_{1}.mp4'.format(media['user']['username'], media_id) if not filename else '{0}.mp4'.format(filename)
    try:
        clips = media['video_versions']
    except Exception:
        return False
    fname = os.path.join(folder, filename)
    if os.path.exists(fname):
        return os.path.abspath(fname)
    response = self.session.get(clips[0]['url'], stream=True)
    if response.status_code == 200:
        with open(fname, 'wb') as f:
            response.raw.decode_content = True
            shutil.copyfileobj(response.raw, f)
        return os.path.abspath(fname)