1 files changed, 3 insertions, 3 deletions
diff --git a/tests/replication/_base.py b/tests/replication/_base.py
index d2220f8195..8437da1cdd 100644
--- a/tests/replication/_base.py
+++ b/tests/replication/_base.py
@@ -495,9 +495,9 @@ class FakeRedisPubSubServer:
     """A fake Redis server for pub/sub."""
 
     def __init__(self) -> None:
-        self._subscribers_by_channel: Dict[
-            bytes, Set["FakeRedisPubSubProtocol"]
-        ] = defaultdict(set)
+        self._subscribers_by_channel: Dict[bytes, Set["FakeRedisPubSubProtocol"]] = (
+            defaultdict(set)
+        )
 
     def add_subscriber(self, conn: "FakeRedisPubSubProtocol", channel: bytes) -> None:
         """A connection has called SUBSCRIBE"""