Update dsr.py

dsr.py

@@ -56,7 +56,7 @@ class Dataset(datasets.GeneratorBasedBuilder):
         data_file = dl_manager.download(_URLs)
         train_key = self.config.data_dir+'-train'
         if train_key in data_file:
-            train=datasets.SplitGenerator(name=datasets.Split.TRAIN, gen_kwargs={"filepath": data_file[train_key]})
+            train=[datasets.SplitGenerator(name=datasets.Split.TRAIN, gen_kwargs={"filepath": data_file[train_key]})]
         else:
             train=[]
         return train+[