[Python] asyncio.run() raise "RuntimeError: Event loop is closed" in a Jupyter Notebook

I'm trying to run an async function inside a Jupyter Notebook using asyncio.run() like this:

import asyncio

async def my_task():
await asyncio.sleep(1)
return "Done"

asyncio.run(my_task())


But I get this error:

RuntimeError: Event loop is closed


I understand Jupyter uses an existing event loop, but what's the correct way to run async functions inside a notebook without this error?

Also:

Why does this work in a regular .py script but not in Jupyter?
Should I use nest_asyncio, await, or some other workaround?

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