From ed8a4ca9acb17918e12623ec0a1329dcc34b02cd Mon Sep 17 00:00:00 2001
From: Tooya12 <145417108+Tooya12@users.noreply.github.com>
Date: Mon, 1 Dec 2025 08:46:33 +0700
Subject: [PATCH] fix(docs): triggers and keep in Summarization should use
 tuple instead of dict

This fix prevents the ValueError:
"not enough values to unpack (expected 2, got 1)"
occurring in langchain/agents/middleware/summarization.py:328.
---
 src/oss/langchain/middleware/built-in.mdx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/oss/langchain/middleware/built-in.mdx b/src/oss/langchain/middleware/built-in.mdx
index fb470363ec..01dba44eaf 100644
--- a/src/oss/langchain/middleware/built-in.mdx
+++ b/src/oss/langchain/middleware/built-in.mdx
@@ -69,8 +69,8 @@ agent = create_agent(
     middleware=[
         SummarizationMiddleware(
             model="gpt-4o-mini",
-            trigger={"tokens": 4000},
-            keep={"messages": 20},
+            trigger=("tokens", 4000),
+            keep=("messages", 20),
         ),
     ],
 )