chore: typing

canonical · Oct 11, 2024 · 61c5d6b · 61c5d6b
1 parent de67e63
commit 61c5d6b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/charm.py b/src/charm.py
@@ -659,7 +659,7 @@ def _configure_container(self, container: Container) -> None:
             raise ContainerNotReadyError
 
     # BEGIN: charm events
-    def _on_upgrade(self, event: UpgradeCharmEvent):
+    def _on_upgrade(self, event: UpgradeCharmEvent) -> None:
         """Upgrade event handler.
 
         During an upgrade event, it will set the version in all relations,