Clean up

cheuph/exceptions.py

@@ -4,6 +4,7 @@ class MessageSupplyException(Exception):
     pass
 
 class ShouldNeverHappen(Exception):
+
     def __init__(self, number: int) -> None:
         message = (f"SNV{number:05} - please contact @Garmy with the code on"
                 " the left if you see this")