in_order.py

import asyncio
from random import randint

from httpx import AsyncClient

async_client = AsyncClient()

async def handler(handler_id):
    6452 ** randint(1, 10)
    print(handler_id, 1)
    
    await async_client.get("https://example.com")
    print(handler_id, 2)
    
    await asyncio.sleep(randint(0, 3))
    print(handler_id, 3)

    r = await asyncio.gather(*[async_client.get("https://example.com") for _ in range(randint(1, 5))])
    print(handler_id, 4)


async def main():
    handlers = [handler(x) for x in range(1, 6)]
    await asyncio.gather(*handlers)


asyncio.run(main())