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

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

pandas/core/arrays/sparse/accessor.py

@@ -371,7 +371,8 @@ def to_dense(self) -> DataFrame:
         """
         data = {k: v.array.to_dense() for k, v in self._parent.items()}
         return self._parent._constructor(
-            data, index=self._parent.index, columns=self._parent.columns)
+            data, index=self._parent.index, columns=self._parent.columns
+        )
 
     def to_coo(self) -> spmatrix:
         """