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-rw-r--r--lib/sqlalchemy/util/topological.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/sqlalchemy/util/topological.py b/lib/sqlalchemy/util/topological.py
index bbc819fc3..bccb16672 100644
--- a/lib/sqlalchemy/util/topological.py
+++ b/lib/sqlalchemy/util/topological.py
@@ -7,6 +7,8 @@
"""Topological sorting algorithms."""
+from __future__ import annotations
+
from .. import util
from ..exc import CircularDependencyError