diff --git a/src/create_custom_objects.py b/src/create_custom_objects.py
index 306aa97..e4cb12f 100644
--- a/src/create_custom_objects.py
+++ b/src/create_custom_objects.py
@@ -119,7 +119,6 @@ b1.contain_collection_inside(b11)
 b.contain_collection_inside(b1)
 b.contain_collection_inside(c1)
 
-
 c.contain_collection_inside(c1)
 c.contain_collection_inside(c2)