def diff_query(self, previous_query: str, current_query: str) -> str:
        """
        Diff two sql queries, returning the summarization of the answer.

        Args:
            previous_query: previous sql query.
            current_query: current sql query.

        Returns:
            str: A string containing the summarization of the answer.

        """
        from waii_sdk_py import WAII
        from waii_sdk_py.query import DiffQueryRequest

        result = WAII.Query.diff(
            DiffQueryRequest(query=current_query, previous_query=previous_query)
        )
        result = json.dumps(result.dict(), indent=2)
        return self._get_summarization("get diff summary", [Document(text=result)])

        Diff two sql queries, returning the summarization of the answer.

        Args:
            previous_query: previous sql query.
            current_query: current sql query.

        Returns:
            str: A string containing the summarization of the answer.

        
llama-index-integrations/tools/llama-index-tools-waii/llama_index/tools/waii/base.py