code: def _generate_null_hocr(output_hocr, output_sidecar, image):
      
      from PIL import Image
  
      im = Image.open(image)
      w, h = im.size
  
      with open(output_hocr, 'w', encoding="utf-8") as f:
          f.write(HOCR_TEMPLATE.format(w, h))
      with open(output_sidecar, 'w', encoding='utf-8') as f:
          f.write('[skipped page]')
docs: Produce a .hocr file that reports no text detected on a page that is
      the same size as the input image.