From 4fd5a34be436f65b207152e1cdf49bfd7c752eb1 Mon Sep 17 00:00:00 2001
From: Kevin Pham <161087761+accupham@users.noreply.github.com>
Date: Mon, 2 Sep 2024 17:19:19 -0500
Subject: [PATCH] Insert guard clause for workflow.upsert_search_attributes on
 empty inputs

Fix for https://github.com/temporalio/sdk-python/issues/629
---
 temporalio/workflow.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/temporalio/workflow.py b/temporalio/workflow.py
index 6ee25ad2..d00a8197 100644
--- a/temporalio/workflow.py
+++ b/temporalio/workflow.py
@@ -906,6 +906,8 @@ def upsert_search_attributes(
             DEPRECATED and if used, result in invalid key types on the
             typed_search_attributes property in the info.
     """
+    if not attributes:
+        return
     temporalio.common._warn_on_deprecated_search_attributes(attributes)
     _Runtime.current().workflow_upsert_search_attributes(attributes)