fix(crons): Correctly type duration as being nullable (#91769)

evanpurkhiser · andrewshie-sentry · commit 831bb43c3deb · 2025-05-15T14:17:29.000-07:00
diff --git a/src/sentry/monitors/serializers.py b/src/sentry/monitors/serializers.py
@@ -274,7 +274,7 @@ class MonitorCheckInSerializerResponse(MonitorCheckInSerializerResponseOptional)
     id: str
     environment: str
     status: str
-    duration: int
+    duration: int | None
     dateCreated: datetime
     dateAdded: datetime
     dateUpdated: datetime
