I am getting the diff between two commits using gitpython in below way:

def get_inbetween_commit_diff(repo_path, commit_a, commit_b):
 repo = Repo(repo_path)
 uni_diff_text = repo.git.diff(
 "{}".format(commit_a), "{}".format(commit_b), ignore_blank_lines=True, ignore_space_at_eol=True
 )
 return uni_diff_text

However, the default repo.git.diff shows the diff with double dot. Is there a way to achieve triple dot diff using gitpython?
Reference on double dot and triple dot diff: https://matthew-brett.github.io/pydagogue/git_diff_dots.html