docs: def download(url, target_file, chunk_size=4096):
      """
      Simple requests downloader
      """
      r = requests.get(url, stream=True)
  
      with open(target_file, 'w+') as out:
          # And this is why I love Armin Ronacher:
          with click.progressbar(r.iter_content(chunk_size=chunk_size),
                                 int(r.headers['Content-Length'])/chunk_size,
                                 label='Downloading...') as chunks:
              for chunk in chunks:
                  out.write(chunk)