diff --git a/torch_geometric/utils/rag/graph_store.py b/torch_geometric/utils/rag/graph_store.py
index 7a17cf4ef7a1..4d5fcbc9418c 100644
--- a/torch_geometric/utils/rag/graph_store.py
+++ b/torch_geometric/utils/rag/graph_store.py
@@ -1,6 +1,7 @@
 from typing import Optional, Union
 
 from torch import Tensor
+
 from torch_geometric.data import FeatureStore
 from torch_geometric.distributed import LocalGraphStore
 from torch_geometric.sampler import (