[pre-commit.ci] auto fixes from pre-commit.com hooks

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torch_frame/data/dataset.py

@@ -589,7 +589,7 @@ def materialize(
             self._is_materialized = True
             return self
 
-        # 1. Fill column statistics: 
+        # 1. Fill column statistics:
         if col_stats is None:
             # calculate from data if col_stats is not provided
             for col, stype in self.col_to_stype.items():
@@ -612,7 +612,6 @@ def materialize(
         else:
             self._col_stats = col_stats
 
-
         # 2. Create the `TensorFrame`:
         self._to_tensor_frame_converter = self._get_tensorframe_converter()
         self._tensor_frame = self._to_tensor_frame_converter(self.df, device)