langchain/tools/sql_database/tool.py/QueryCheckerTool/_run
class QueryCheckerTool:    def _run(
        self,
        query: str,
        run_manager: Optional[CallbackManagerForToolRun] = None,
    ) -> str:
        """Use the LLM to check the query."""
        return self.llm_chain.predict(query=query, dialect=self.db.dialect)