Update ppb_affinity.py

ppb_affinity.py

@@ -32,15 +32,15 @@ class ppb_affinity(datasets.GeneratorBasedBuilder):
             ),
 
             datasets.SplitGenerator(
-                name="train_rand",
+                name=datasets.NamedSplit("train_rand"),
                 gen_kwargs={"filepath": filepath, "split": "train_rand", "random_split": True},
             ),
             datasets.SplitGenerator(
-                name="val_rand",
+                name=datasets.NamedSplit("validation_rand"),
                 gen_kwargs={"filepath": filepath, "split": "val_rand", "random_split": True},
             ),
             datasets.SplitGenerator(
-                name="test_rand",
+                name=datasets.NamedSplit("test_rand"),
                 gen_kwargs={"filepath": filepath, "split": "test_rand", "random_split": True},
             ),
         ]