Python PRAW如何从reddit获取视频

我制作了一个机器人，从Reddit获取帖子，然后通过webhook将其发送给Discord。我的问题是它只接收照片。我也想拍视频

这是我代码的一部分

 def run_bot(r):
    for sub in config.subreddits:
        submissions = r.subreddit(sub).hot(limit = config.limit)
        for submission in submissions:
            if submission not in blacklist:
                if submission.is_self == False and submission.is_video == False:                    
                    data = {}
                    data["embeds"] = []
                    embed = {
                            "title": config.embed_title,
                            "author": {
                                "name": "posted by u/{} at r/{}".format(str(submission.author), str(submission.subreddit)),
                                "url": "https://reddit.com/r/{}/comments/{}".format(str(submission.subreddit), str(submission)),
                                "icon_url": submission.author.icon_img
                            },
                            "image": {
                                "url": submission.url