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-rw-r--r--kombu/utils/collections.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/kombu/utils/collections.py b/kombu/utils/collections.py
index 77781047..1a0a6d0d 100644
--- a/kombu/utils/collections.py
+++ b/kombu/utils/collections.py
@@ -1,6 +1,9 @@
"""Custom maps, sequences, etc."""
+from __future__ import annotations
+
+
class HashedSeq(list):
"""Hashed Sequence.