async def aget_node_dict(self, node_id_dict: Dict[int, str]) -> Dict[int, BaseNode]:
        """
        Get node dict from docstore given a mapping of index to node ids.

        Args:
            node_id_dict (Dict[int, str]): mapping of index to node ids

        """
        return {
            index: await self.aget_node(node_id)
            for index, node_id in node_id_dict.items()
        }

        Get node dict from docstore given a mapping of index to node ids.

        Args:
            node_id_dict (Dict[int, str]): mapping of index to node ids

        
llama-index-core/llama_index/core/storage/docstore/types.py