Update ref-metrics.py

ref-metrics.py

@@ -87,13 +87,9 @@ class UserFriendlyMetrics(evaluate.Metric):
     def _download_and_prepare(self, dl_manager):
         """Optional: download external resources useful to compute the scores"""
         # TODO: Download external resources if needed
-        pass
+        pass  
 
-    def _compute(self, references, predictions):
-        
-        return self.dummy_values()        
-
-    def compute(
+    def compute_from_payload(
         self,
         payload,
         max_iou: float = 0.5,
@@ -103,7 +99,7 @@ class UserFriendlyMetrics(evaluate.Metric):
     ):
         """Returns the scores"""
         # this practically call _compute
-        return self._compute({},{})
+        return self.dummy_values()
         # return calculate(predictions, references, max_iou)
 
     def dummy_values(self):