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-rw-r--r--sphinx/pycode/ast.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/sphinx/pycode/ast.py b/sphinx/pycode/ast.py
index 32c016521..f5ce196ab 100644
--- a/sphinx/pycode/ast.py
+++ b/sphinx/pycode/ast.py
@@ -1,5 +1,7 @@
"""Helpers for AST (Abstract Syntax Tree)."""
+from __future__ import annotations
+
import ast
import warnings
from typing import Dict, List, Optional, Type, overload