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-rw-r--r--slixmpp/features/feature_rosterver/stanza.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/slixmpp/features/feature_rosterver/stanza.py b/slixmpp/features/feature_rosterver/stanza.py
index 3696d89a..428dbb26 100644
--- a/slixmpp/features/feature_rosterver/stanza.py
+++ b/slixmpp/features/feature_rosterver/stanza.py
@@ -1,14 +1,14 @@
-
# Slixmpp: The Slick XMPP Library
# Copyright (C) 2012 Nathanael C. Fritz
# This file is part of Slixmpp.
# See the file LICENSE for copying permission.
from slixmpp.xmlstream import ElementBase
+from typing import Set, ClassVar
class RosterVer(ElementBase):
name = 'ver'
namespace = 'urn:xmpp:features:rosterver'
- interfaces = set()
+ interfaces: ClassVar[Set[str]] = set()
plugin_attrib = 'rosterver'