docs: def get_commits_since(check_name, target_tag=None):
      """
      Get the list of commits from `target_tag` to `HEAD` for the given check
      """
      root = get_root()
      target_path = os.path.join(root, check_name)
      command = 'git log --pretty=%s {}{}'.format('' if target_tag is None else '{}... '.format(target_tag), target_path)
  
      with chdir(root):
          return run_command(command, capture=True).stdout.splitlines()