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

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

torch_geometric/explain/explainer.py

@@ -17,11 +17,9 @@
     ModelMode,
     ThresholdConfig,
 )
-
 from torch_geometric.typing import EdgeType, NodeType
 
 
-
 class Explainer:
     r"""An explainer class for instance-level explanations of Graph Neural
     Networks.

torch_geometric/explain/explanation.py

@@ -1,5 +1,4 @@
 import copy
-
 from typing import Dict, List, Optional, Union
 
 import torch
@@ -17,7 +16,6 @@ def available_explanations(self) -> List[str]:
         """Returns the available explanation masks."""
         return [key for key in self.keys if key.endswith('_mask')]
 
-
     def validate_masks(self, raise_on_error: bool = True) -> bool:
         r"""Validates the correctness of the :class:`Explanation` masks."""
         status = True