code: def download(url):
      
      filepath = get_file(fname='tmp.zip', origin=url, extract=True)
      base_dir = os.path.dirname(filepath)
      weights_file = os.path.join(base_dir, 'weights.h5')
      params_file = os.path.join(base_dir, 'params.json')
      preprocessor_file = os.path.join(base_dir, 'preprocessor.pickle')
  
      return weights_file, params_file, preprocessor_file
docs: Download a trained weights, config and preprocessor.
  
      Args:
          url (str): target url.