def _build_key_from_filter_item(self, index, value): desc = self.model_class._attributes.get(index) if desc: value = desc.typecast_for_storage(value) return self.model_class._key[index][_encode_key(value)]
def _index_key_for_attr_val(self, att, val): return self._key[att][_encode_key(val)]