code: def cache_url_config(cls, url, backend=None):
          
          url = urlparse(url) if not isinstance(url, cls.URL_CLASS) else url
  
          location = url.netloc.split(',')
          if len(location) == 1:
              location = location[0]
  
          config = {
              'BACKEND': cls.CACHE_SCHEMES[url.scheme],
              'LOCATION': location,
          }
  
          # Add the drive to LOCATION
          if url.scheme == 'filecache':
              config.update({
                  'LOCATION': url.netloc + url.path,
              })
  
          if url.path and url.scheme in ['memcache', 'pymemcache']:
              config.update({
                  'LOCATION': 'unix:' + url.path,
              })
          elif url.scheme.startswith('redis'):
              if url.hostname:
                  scheme = url.scheme.replace('cache', '')
              else:
                  scheme = 'unix'
              locations = [scheme + '://' + loc + url.path for loc in url.netloc.split(',')]
              config['LOCATION'] = locations[0] if len(locations) == 1 else locations
  
          if url.query:
              config_options = {}
              for k, v in parse_qs(url.query).items():
                  opt = {k.upper(): _cast(v[0])}
                  if k.upper() in cls._CACHE_BASE_OPTIONS:
                      config.update(opt)
                  else:
                      config_options.update(opt)
              config['OPTIONS'] = config_options
  
          if backend:
              config['BACKEND'] = backend
  
          return config
docs: Pulled from DJ-Cache-URL, parse an arbitrary Cache URL.
  
          :param url:
          :param backend:
          :return: