code: def _getFeedContent(self, url, excludeRead=False, continuation=None, loadLimit=20, since=None, until=None):
          
          parameters = {}
          if excludeRead:
              parameters['xt'] = 'user/-/state/com.google/read'
          if continuation:
              parameters['c'] = continuation
          parameters['n'] = loadLimit
          if since:
              parameters['ot'] = since
          if until:
              parameters['nt'] = until
          contentJson = self.httpGet(url, parameters)
          return json.loads(contentJson, strict=False)
docs: A list of items (from a feed, a category or from URLs made with SPECIAL_ITEMS_URL)
  
          Returns a dict with
           :param id: (str, feed's id)
           :param continuation: (str, to be used to fetch more items)
           :param items:  array of dits with :
              - update (update timestamp)
              - author (str, username)
              - title (str, page title)
              - id (str)
              - content (dict with content and direction)
              - categories (list of categories including states or ones provided by the feed owner)