This is not believable. It's not syntactically valid Python.
https://github.com/twitter/the-algorithm/blob/c54bec0d4e029f...
https://github.com/twitter/the-algorithm/blob/c54bec0d4e029f...
(I'm not necessarily saying that's what's going on. But I do seem to recall that when reddit open-sourced, they deliberately chose to redact info related to vote manipulation/spam detection/etc.)