docs: def requests_get(url):
      """ Run :func:`requests.get` in a ``cached()`` wrapper.
  
      The cache wrapper uses the default timeout (environment variable
      ``PYTHON_FTR_CACHE_TIMEOUT``, 3 days by default).
  
      It is used in :func:`ftr_process`.
      """
  
      LOGGER.info(u'Fetching %s…', url)
      return requests.get(url)