如何让aiohttp输出reddit图片？

import aiohttp
import asyncio
import json

async def fetch_reddit_image(session, url):
    async with session.get(url) as response:
        if response.status == 200:
            image_data = await response.read()
            # 进行图片的保存或进一步处理
            # ...

async def main():
    subreddit = 'pics'  # 要获取图片的主题
    reddit_api_url = f'https://www.reddit.com/r/{subreddit}/top.json'
    
    async with aiohttp.ClientSession() as session:
        async with session.get(reddit_api_url) as response:
            if response.status == 200:
                data = await response.json()
                for post in data['data']['children']:
                    image_url = post['data']['url']
                    await fetch_reddit_image(session, image_url)

# 运行主函数
loop = asyncio.get_event_loop()
loop.run_until_complete(main())