Update files from the datasets library (from 1.6.1)

Release notes: https://github.com/huggingface/datasets/releases/tag/1.6.1

orange_sum.py

@@ -100,7 +100,7 @@ class OrangeSum(datasets.GeneratorBasedBuilder):
         ]
 
     def _generate_examples(self, filepath, split):
-        """ Yields examples. """
+        """Yields examples."""
         with open(
             os.path.join(filepath, self.config.name, "{}.source".format(split)), encoding="utf-8"
         ) as f_source, open(