[pre-commit.ci] auto fixes from pre-commit.com hooks

pre-commit-ci[bot] · pre-commit-ci[bot] · commit b8631395494f · 2025-06-29T04:08:49.000Z
for more information, see https://pre-commit.ci
diff --git a/matrix/matrix_class.py b/matrix/matrix_class.py
@@ -4,6 +4,7 @@
 
 from typing import final
 
+
 @final
 class Matrix:
     """
