From c127ae9d26ecc15d76759e531e0dd03c22b0d2d0 Mon Sep 17 00:00:00 2001
From: "xzq.xu" <1325732643@qq.com>
Date: Wed, 26 Mar 2025 22:41:58 +0800
Subject: [PATCH] fix the format

---
 libs/core/langchain_core/tools/base.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/core/langchain_core/tools/base.py b/libs/core/langchain_core/tools/base.py
index 87a8c80b865..0b1d37f2061 100644
--- a/libs/core/langchain_core/tools/base.py
+++ b/libs/core/langchain_core/tools/base.py
@@ -837,6 +837,8 @@ class ChildTool(BaseTool):
                     self._run if self.__class__._arun is BaseTool._arun else self._arun
                 )
                 if signature(func_to_check).parameters.get("run_manager"):
+                    import copy
+                    tool_kwargs = copy.deepcopy(tool_kwargs)
                     tool_kwargs["run_manager"] = run_manager
                 if config_param := _get_runnable_config_param(func_to_check):
                     tool_kwargs[config_param] = config