import aiohttp
import asyncio

async def fetch(session, url):
    proxy_auth = aiohttp.BasicAuth('bots_man', 'Ax123456')
    async with session.get(url, proxy='http://185.250.148.233:8899', proxy_auth=proxy_auth) as response:
        return await response.text()

async def main():
    async with aiohttp.ClientSession() as session:
        html = await fetch(session, 'http://example.com')
        print(html)

asyncio.run(main())