[Python PSM Interop] Use FrozenSet

XuanWang-Amos · Jan 30, 2024 · 86bd6b1 · 86bd6b1
1 parent 71fa68f
commit 86bd6b1
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/python/grpcio_tests/tests_py3_only/interop/xds_interop_client.py b/src/python/grpcio_tests/tests_py3_only/interop/xds_interop_client.py
@@ -23,6 +23,7 @@
 from typing import (
     DefaultDict,
     Dict,
+    FrozenSet,
     Iterable,
     List,
     Mapping,
@@ -84,7 +85,7 @@ class _StatsWatcher:
     _no_remote_peer: int
     _lock: threading.Lock
     _condition: threading.Condition
-    _metadata_keys: frozenset
+    _metadata_keys: FrozenSet[str]
     _include_all_metadata: bool
     _metadata_by_peer: DefaultDict[
         str, messages_pb2.LoadBalancerStatsResponse.MetadataByPeer