From 7fd6b1b4bec95e5ad61eccb1790bd82b923853fc Mon Sep 17 00:00:00 2001
From: Nuno Campos <nuno@langchain.dev>
Date: Thu, 24 Oct 2024 08:48:46 -0700
Subject: [PATCH] Fix

---
 libs/langgraph/langgraph/pregel/remote.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libs/langgraph/langgraph/pregel/remote.py b/libs/langgraph/langgraph/pregel/remote.py
index ae0f5d2f3..f7ae8c9b6 100644
--- a/libs/langgraph/langgraph/pregel/remote.py
+++ b/libs/langgraph/langgraph/pregel/remote.py
@@ -240,8 +240,8 @@ class RemoteGraph(PregelProtocol):
         }
 
         return {
-            "tags": config.get("tags"),
-            "metadata": config.get("metadata"),
+            "tags": config.get("tags") or [],
+            "metadata": config.get("metadata") or {},
             "configurable": new_configurable,
         }