fix lint

Author: Kite0011

verl/protocol.py

@@ -198,7 +198,6 @@ def union_numpy_dict(tensor_dict1: dict[str, np.ndarray], tensor_dict2: dict[str
     return tensor_dict1
 
 
-
 def fold_batch_dim(data: "DataProto", new_batch_size):
     """
     Fold a batch dim from [bsz, xxx] into [new_bsz, bsz // new_bsz, xxx]

verl/utils/py_functional.py

@@ -365,4 +365,4 @@ def list_of_dict_to_dict_of_list(list_of_dict: list[dict]):
         for key, item in data.items():
             assert key in output, f"Key '{key}' is not present in the keys of the first dictionary in the list."
             output[key].append(item)
-    return output
+    return output