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-rw-r--r--sphinx/builders/xml.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/sphinx/builders/xml.py b/sphinx/builders/xml.py
index e86c7684c..0f2f169ae 100644
--- a/sphinx/builders/xml.py
+++ b/sphinx/builders/xml.py
@@ -1,5 +1,7 @@
"""Docutils-native XML and pseudo-XML builders."""
+from __future__ import annotations
+
from os import path
from typing import Any, Dict, Iterator, Optional, Set, Type, Union