From 4254028c521947513c5ada18657325ce4b387e66 Mon Sep 17 00:00:00 2001
From: William FH <13333726+hinthornw@users.noreply.github.com>
Date: Fri, 27 Oct 2023 13:38:47 +0900
Subject: [PATCH] Str Evaluator Mapper (#12401)

---
 .../langchain/smith/evaluation/string_run_evaluator.py          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/langchain/langchain/smith/evaluation/string_run_evaluator.py b/libs/langchain/langchain/smith/evaluation/string_run_evaluator.py
index 1c14017673..d803ee9a8e 100644
--- a/libs/langchain/langchain/smith/evaluation/string_run_evaluator.py
+++ b/libs/langchain/langchain/smith/evaluation/string_run_evaluator.py
@@ -226,7 +226,7 @@ class StringExampleMapper(Serializable):
         return {
             "reference": self.serialize_chat_messages([output])
             if isinstance(output, dict) and output.get("type") and output.get("data")
-            else str(output)
+            else output
         }
 
     def __call__(self, example: Example) -> Dict[str, str]: