code: def _join_url(base: str, parts: Union[str, List[str]]) -> str:
      """
      Constructs a full (“absolute”) URL by combining a “base URL” (base) with additional relative URL parts.
      The behaviour is similar to os.path.join() on linux, but also behaves consistently on Windows.
  
      Parameters
      ----------
      base
          The base URL, e.g. `'https://mysite.com/'`.
      parts
          Part to append, or list of parts to append e.g. `['/dir1/', 'dir2', 'dir3']`.
  
      Returns
      -------
      The joined url e.g. `https://mysite.com/dir1/dir2/dir3`.
      """
      parts = [parts] if isinstance(parts, str) else parts
      if len(parts) == 0:
          raise TypeError(
              "The `parts` argument must contain at least one item."
          )
      url = urljoin(
          base + "/",
          "/".join(
              quote_plus(part.strip(r"\/"), safe="/") for part in parts
          ),
      )
      return url
  
label_desc: Use image node_id 1 for calling a global function with example usage: _join_url(base, parts) and returns: url