How to use async __init__ magic method in Python

asyncinit.py

import asyncio

class AsyncClass:
    async def __new__(cls, *args, **kwargs):
        o = super().__new__(cls)
        # Explicit async call
        await o.__init__(*args, **kwargs)
        return o  # __init__ will be called anyway
        
    async def __init__(self, *args, **kwargs):
        print('Executing async init!', args, kwargs)

async def runner():
    obj = await AsyncClass('foo', bar=123)
    print(obj)

loop = asyncio.get_event_loop()
loop.run_until_complete(runner())