AIY repository is not available

I'm getting an error while apt-get update

```
Ign:5 https://packages.cloud.google.com/apt aiyprojects-stable InRelease
Err:7 https://packages.cloud.google.com/apt aiyprojects-stable Release
  404  Not Found [IP: 172.217.16.46 443]
```

Is it possible to recover packages ?