Update WaterFlowCountersRecognition.py

WaterFlowCountersRecognition.py

@@ -60,7 +60,7 @@ class WaterFlowCounter(datasets.GeneratorBasedBuilder):
     def _info(self):
         features = datasets.Features(
             {
-                
+                "index": datasets.Value(int32),
                 "image": datasets.Image(),
                 "regions": datasets.Sequence(
                     {