Cannot find reference `asyncio` in `__init__.pyi`

I'm using PyCharm and I added `aioredis` functionalities as suggested [here](https://github.com/aio-libs/aioredis-py#-aioredis-is-now-in-redis-py-420rc1-). Below is the error I get in the ide:

![image](https://user-images.githubusercontent.com/85762931/185748987-86780f5e-1bd3-4436-8ed7-5109a0bf59aa.png)

However, everything works fine, and there are no errors related to this issue.