diff --git a/lib/dl_core/dl_core/data_source/sql.py b/lib/dl_core/dl_core/data_source/sql.py
index 611a387cf..641db1600 100644
--- a/lib/dl_core/dl_core/data_source/sql.py
+++ b/lib/dl_core/dl_core/data_source/sql.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-import abc
+import abc  # test
 from functools import wraps
 import logging
 from typing import (