diff --git a/easygraph/classes/hypergraph.py b/easygraph/classes/hypergraph.py
index 33aa7bbf..cf811b78 100644
--- a/easygraph/classes/hypergraph.py
+++ b/easygraph/classes/hypergraph.py
@@ -21,6 +21,8 @@
 from easygraph.utils.sparse import sparse_dropout
 from scipy.sparse import csr_array
 from scipy.sparse import csr_matrix
+
+
 # from torch_sparse import spmm