import asyncio

task = None

def do_stuff(on_finished):
    result = 5 + 5
    asyncio.create_task(on_finished(result))


def on_finished(result):
    print("on_finished called")
    async def actual_work():
        await asyncio.sleep(0.1)
        print(result)
    return actual_work()


async def main():
    do_stuff(on_finished)
    print("do_stuff exited")
    await asyncio.sleep(0.2)


if __name__ == "__main__":
    asyncio.run(main())