fix: filter func None

valid_efficiency_score.py

@@ -164,7 +164,10 @@ class ValidEfficiencyScore(evaluate.Metric):
                 # If only the reference passes the filter, count it
                 elif pred_bool != ref_bool:
                     divider += 1
-
+        else:
+            filtered_predictions = predictions
+            filtered_references = references
+            divider = len(predictions)
         accuracy = sum(
             execute(i) == execute(j) for i, j in zip(filtered_predictions, filtered_references)) / divider