src/transformers/models/auto/auto_factory.py/_LazyAutoMapping/items
class _LazyAutoMapping:    def items(self):
        mapping_items = [
            (
                self._load_attr_from_module(key, self._config_mapping[key]),
                self._load_attr_from_module(key, self._model_mapping[key]),
            )
            for key in self._model_mapping.keys()
            if key in self._config_mapping.keys()
        ]
        return mapping_items + list(self._extra_content.items())