code: def _get_localized_fn(path, root_dir):
      
      local_fn = path
      if path.startswith(root_dir):
          local_fn = path.replace(root_dir, "", 1)
  
      if not local_fn.startswith("/"):
          return "/" + local_fn
  
      return local_fn
docs: Return absolute `path` relative to `root_dir`.
  
      When `path` == ``/home/xex/somefile.txt`` and `root_dir` == ``/home``,
      returned path will be ``/xex/somefile.txt``.
  
      Args:
          path (str): Absolute path beginning in `root_dir`.
          root_dir (str): Absolute path containing `path` argument.
  
      Returns:
          str: Local `path` when `root_dir` is considered as root of FS.