code: def list_rocs_files(url=ROCS_URL):
      
      soup = BeautifulSoup(get(url))
      if not url.endswith('/'):
          url += '/'
      files = []
      for elem in soup.findAll('a'):
          if elem['href'].startswith('?'):
              continue
          if elem.string.lower() == 'parent directory':
              continue
          files.append(url + elem['href'])
      return files
docs: Gets the contents of the given url.