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-rw-r--r--lib/sqlalchemy/orm/attributes.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/attributes.py b/lib/sqlalchemy/orm/attributes.py
index fbfb2b2ee..c4afdb3a9 100644
--- a/lib/sqlalchemy/orm/attributes.py
+++ b/lib/sqlalchemy/orm/attributes.py
@@ -13,6 +13,9 @@ defines a large part of the ORM's interactivity.
"""
+
+from __future__ import annotations
+
from collections import namedtuple
import operator
from typing import Any