More cleanup.

[python_utils.git] / state_tracker.py

diff --git a/state_tracker.py b/state_tracker.py
index b375f8928dc09c6f359d6e99846d06f1db947c5e..1cf62af6ea8000e5d1ed32646ec0a212a0b55faf 100644 (file)
--- a/state_tracker.py
+++ b/state_tracker.py
@@ -109,7 +109,7 @@ class AutomaticStateTracker(StateTracker):
     """
 
     @background_thread
-    def pace_maker(self, should_terminate) -> None:
+    def pace_maker(self, should_terminate: threading.Event) -> None:
         """Entry point for a background thread to own calling heartbeat()
         at regular intervals so that the main thread doesn't need to do
         so.