diff --git a/unimore_bda_6/analysis/base.py b/unimore_bda_6/analysis/base.py
index c5579ec..84d207a 100644
--- a/unimore_bda_6/analysis/base.py
+++ b/unimore_bda_6/analysis/base.py
@@ -31,6 +31,7 @@ class AlreadyTrainedError(Exception):
     This model has already been trained and cannot be trained again.
     """
 
+
 class NotTrainedError(Exception):
     """
     This model has not been trained yet.