Mypy fix

ics/event.py

@@ -197,11 +197,6 @@ def end(self) -> Arrow:
         else:
             return None
 
-    def _timedelta_ceiling(self, value, precision):
-        if precision != 'day' or (value.seconds == 0 and value.microseconds == 0):
-            return value
-        return timedelta(days=value.days + 1)
-
     @end.setter
     def end(self, value: ArrowLike):
         value = get_arrow(value)
@@ -220,6 +215,11 @@ def end(self, value: ArrowLike):
             self._duration = None
             self._begin_precision = precision
 
+    def _timedelta_ceiling(self, value, precision):
+        if precision != 'day' or (value.seconds == 0 and value.microseconds == 0):
+            return value
+        return timedelta(days=value.days + 1)
+
     @property
     def duration(self) -> Optional[timedelta]:
         """Get or set the duration of the event.