The unit of observation for this data are functions or methods and their associated docstrings or top-level comments. So there are no code reviews in the data.

The unit of observation for this data are functions or methods and their associated docstrings or top-level comments. So there are no code reviews in the data. However, we do include metadata including the SHA and owner/repo which would allow you to retrieve this information! What were you thinking of doing with code reviews?