fix: Fixed preview

imagenette.py

@@ -110,7 +110,7 @@ class OpenFire(datasets.GeneratorBasedBuilder):
         )
 
     def _split_generators(self, dl_manager):
-        data_dir = dl_manager.iter_archive(dl_manager.download(self.config.data_url))
+        data_dir = dl_manager.iter_archive(self.config.data_url)
         return [
             datasets.SplitGenerator(
                 name=datasets.Split.TRAIN,