Update oppo_refuse_match.py

oppo_refuse_match.py

@@ -27,7 +27,7 @@ Returns the rate at which the input predicted strings exactly match the refuse l
 
 _KWARGS_DESCRIPTION = """
 Args:
-    predictions: List of predicted texts.
+    predictions: List of predicted texts. -> [prediction] only one
     
 Returns:
     exact_match: Dictionary containing oppo_refuse_match rate. Possible values are 0 or 1
@@ -61,7 +61,8 @@ class OppoRefuseMatch(evaluate.Metric):
         patterns = [
         r"There is no", r"no", r"non-existent", r"not a", r"none"
     ]
-        if has_answer(predictions,patterns):
-            return {"oppo_refuse_match": 1}
-        else:
-            return {"oppo_refuse_match": 0}
+        score_list=0
+        for prediction in predictions:
+            if has_answer(prediction,patterns):
+                score_list+=1
+        return {"oppo_refuse_match": score_list/len(predictions)}