def METHOD_NAME(out_dir: Path=OUTPUT_DIR) -> Iterator[str]:
    """parse an archive index html file and return the list of urls"""
    index_path = Path(out_dir) / HTML_INDEX_FILENAME
    if index_path.exists():
        with open(index_path, 'r', encoding='utf-8') as f:
            for line in f:
                if 'class="link-url"' in line:
                    yield line.split('"')[1]
    return ()