code: def _get_vqa_v2_image_raw_dataset(directory, image_root_url, image_urls):
    
    for url in image_urls:
      filename = os.path.basename(url)
      download_url = os.path.join(image_root_url, url)
      path = generator_utils.maybe_download(directory, filename, download_url)
      unzip_dir = os.path.join(directory, filename.strip(".zip"))
      if not tf.gfile.Exists(unzip_dir):
        zipfile.ZipFile(path, "r").extractall(directory)
docs: Extract the VQA V2 image data set to directory unless it's there.