def item_extra_kwargs(self, action):
        """
        Returns an extra keyword arguments dictionary that is used with
        the `add_item` call of the feed generator.
        Add the 'content' field of the 'Entry' item, to be used by the custom
        feed generator.
        """
        item = self.format(action)
        item.pop('title', None)
        item['uri'] = item.pop('url')
        item['activity:verb'] = item.pop('verb')
        return item

        Returns an extra keyword arguments dictionary that is used with
        the `add_item` call of the feed generator.
        Add the 'content' field of the 'Entry' item, to be used by the custom
        feed generator.
        
actstream/feeds.py