update

ranking_loss.py

@@ -15,6 +15,7 @@
 
 import evaluate
 import datasets
+from typing import Iterable
 from sklearn.metrics import label_ranking_loss
 
 # TODO: Add BibTeX citation
@@ -71,8 +72,8 @@ class RankingLoss(evaluate.Metric):
             inputs_description=_KWARGS_DESCRIPTION,
             # This defines the format of each prediction and reference
             features=datasets.Features({
-                'predictions': datasets.Sequence(),
-                'references': datasets.Sequence(),
+                'predictions': Iterable,
+                'references': Iterable,
             }),
             # Homepage of the module for documentation
             # homepage="http://module.homepage",