async def _areturn_null_eval_result(self, query) -> EvaluationResult:
        """
        A dummy async method that returns None.

        NOTE: this is used to handle case when creating async tasks for evaluating
        predictions where contexts do not exist.
        """
        return EvaluationResult(
            query=query,
        )

        A dummy async method that returns None.

        NOTE: this is used to handle case when creating async tasks for evaluating
        predictions where contexts do not exist.
        
llama-index-packs/llama-index-packs-rag-evaluator/llama_index/packs/rag_evaluator/base.py