--- blink-git/blink/chatwindow.py.orig	2021-12-20 11:46:36.793749556 +0000
+++ blink-git/blink/chatwindow.py	2021-12-20 11:47:01.243794043 +0000
@@ -18,7 +18,8 @@
 from application.python.descriptor import WriteOnceAttribute
 from application.python.types import MarkerType
 from application.system import makedirs
-from collections import MutableSet, deque
+from collections.abc import MutableSet
+from collections import deque
 from datetime import datetime, timedelta
 from itertools import count
 from lxml import etree, html