code: def sanitize_url(url: str) -> str:
      
  
      for part in reversed(url.split('/')):
          filename = re.sub(r'[^a-zA-Z0-9_.\-]', '', part)
          if len(filename) > 0:
              break
      else:
          raise ValueError('Could not create reasonable name for file from url %s', url)
  
      return filename
docs: Sanitize the given url so that it can be used as a valid filename.
  
      :param url: url to create filename from
      :raise ValueError: when the given url can not be sanitized
      :return: created filename