change format

python/dgl/distributed/__init__.py

@@ -17,11 +17,11 @@
 from .nn import *
 from .partition import (
     dgl_partition_to_graphbolt,
+    gb_convert_single_dgl_partition,
     load_partition,
     load_partition_book,
     load_partition_feats,
     partition_graph,
-    gb_convert_single_dgl_partition,
 )
 from .rpc import *
 from .rpc_client import connect_to_server