Update files from the datasets library (from 1.6.1)

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

numeric_fused_head.py

@@ -116,7 +116,7 @@ class NumericFusedHead(datasets.GeneratorBasedBuilder):
         ]
 
     def _generate_examples(self, filepath):
-        """ Yields examples. """
+        """Yields examples."""
         with open(filepath, encoding="utf-8") as f:
             if self.config.name == "identification":
                 r = csv.DictReader(f, delimiter="\t")