Python 3.5의 Async/Await에서 'Fire and Forget' 동작을 달성하는 방법은 무엇입니까?

import asyncio

async def async_foo():
    print("async_foo started")
    await asyncio.sleep(1)
    print("async_foo done")

async def main():
    asyncio.ensure_future(async_foo())  # fire and forget async_foo()

    # Perform other actions

if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())

async_foo started
Do some actions 1
async_foo done
Do some actions 2
Do some actions 3

# Let's also finish all running tasks:
pending = asyncio.Task.all_tasks()
loop.run_until_complete(asyncio.gather(*pending))

# Let's also cancel all running tasks:
pending = asyncio.Task.all_tasks()
for task in pending:
    task.cancel()
    # Now we should await task to execute it's cancellation.
    # Cancelled task raises asyncio.CancelledError that we can suppress:
    with suppress(asyncio.CancelledError):
        loop.run_until_complete(task)