Is it possible to target a different branch than the default one?

Everything is in the title, I am not super proficient in python but from the docs and source code seems you cannot select the branch.

Sometimes I need to target a different branch than master, main or anything default for dev/test purposes.

#305 duplicates this issue, and there is a PR (#306) in review now. Closing this. Please follow progress in the other issue or the PR.