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-rw-r--r--lib/sqlalchemy/sql/visitors.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/visitors.py b/lib/sqlalchemy/sql/visitors.py
index 640c07d61..523426d09 100644
--- a/lib/sqlalchemy/sql/visitors.py
+++ b/lib/sqlalchemy/sql/visitors.py
@@ -23,6 +23,8 @@ https://techspot.zzzeek.org/2008/01/23/expression-transformations/ .
"""
+from __future__ import annotations
+
from collections import deque
import itertools
import operator