Update test3.py

test3.py

@@ -54,7 +54,7 @@ class Artwork(datasets.GeneratorBasedBuilder):
                     "image_data": bytes
                 }
             ),
-            supervised_keys=("filename", "label","image_data"),
+            supervised_keys=("label","image_data"),
             homepage=_HOMEPAGE,
             citation=_CITATION,
             task_templates=[ImageClassification(image_column="image_data", label_column="label")],