diff --git a/custom_components/luxtronik/model.py b/custom_components/luxtronik/model.py
index 110b139..5c7b967 100644
--- a/custom_components/luxtronik/model.py
+++ b/custom_components/luxtronik/model.py
@@ -173,8 +173,7 @@ class LuxtronikClimateDescription(
 
 def metaclass_resolver(*classes):
     metaclass = tuple(set(type(cls) for cls in classes))
-    metaclass = metaclass[0] if len(metaclass)==1 \
-                else type("_".join(mcls.__name__ for mcls in metaclass), metaclass, {})   # class M_C
+    metaclass = metaclass[0] if len(metaclass)==1 else type("_".join(mcls.__name__ for mcls in metaclass), metaclass, {})   # class M_C
     return metaclass("_".join(cls.__name__ for cls in classes), classes, {})   
 
 @dataclass