add missing slot

blink1073 · blink1073 · commit b60bef14609b · 2025-07-01T12:57:54.000-05:00
diff --git a/pymongo/topology_description.py b/pymongo/topology_description.py
@@ -63,6 +63,7 @@ class _TopologyType(NamedTuple):
 class TopologyDescription:
     __slots__ = (
         "_topology_type",
+        "_topology_settings",
         "_replica_set_name",
         "_server_descriptions",
         "_max_set_version",
