From 248e067da7e2c443375f6a555c05a2b08d4fbbda Mon Sep 17 00:00:00 2001
From: Damien Elmes <gpg@ankiweb.net>
Date: Sun, 31 Jan 2021 16:25:23 +1000
Subject: [PATCH] add back basic rsbackend.py for compatibility

---
 pylib/anki/rsbackend.py | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 pylib/anki/rsbackend.py

diff --git a/pylib/anki/rsbackend.py b/pylib/anki/rsbackend.py
new file mode 100644
index 000000000..ceadfbd22
--- /dev/null
+++ b/pylib/anki/rsbackend.py
@@ -0,0 +1,17 @@
+# Copyright: Ankitects Pty Ltd and contributors
+# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
+#
+# The backend code has moved into _backend; this file exists only to avoid breaking
+# some add-ons. They should be updated to point to the correct location in the
+# future.
+#
+# pylint: disable=unused-import
+
+from typing import TYPE_CHECKING
+
+from anki.lang import FormatTimeSpanContext
+from anki.decks import DeckTreeNode
+from anki.errors import NotFoundError, InvalidInput
+
+if TYPE_CHECKING:
+    from anki.lang import FormatTimeSpanContextValue, TRValue