def compute_key_value(self) -> Dict[str, float]:
        """
        Compute accuracy for all data and return results in key-value format

        Returns:
            dict of metrics
        """
        metric_mean, metric_std = self.compute()
        return {
            self.metric_name_mean: metric_mean,
            self.metric_name_std: metric_std,
        }

        Compute accuracy for all data and return results in key-value format

        Returns:
            dict of metrics
        
catalyst/metrics/_accuracy.py