I'm packaging an [app I wrote](https://github.com/mssever/sleep-inhibit) in Python 3 which uses:

```
from gi.repository import AppIndicator3

```

As I'm listing the dependencies, I have been unable to determine what package contains `AppIndicator3`. I guessed `python-appindicator`, but looking at that package it appears that it's for Python 2, not Python 3.

Which package should I depend on?