Get a feed's items.

        :param offset: Amount of items to skip before returning data
        :param since:  Return items added after this id (ordered old -> new)
        :param before: Return items added before this id (ordered new -> old)
        :param limit: Amount of items to return

def items(self, offset=None, limit=20, since=None, before=None, *args, **kwargs):
        """ Get a feed's items.

        :param offset: Amount of items to skip before returning data
        :param since:  Return items added after this id (ordered old -> new)
        :param before: Return items added before this id (ordered new -> old)
        :param limit: Amount of items to return
        """
        return ItemList(self, offset=offset, limit=limit, since=since, before=before, cached=self.is_cached)