From 595297e2e58967b4f083e3ad387f2c0628e42538 Mon Sep 17 00:00:00 2001
From: Nuno Campos <nuno@langchain.dev>
Date: Thu, 16 Jan 2025 14:43:42 -0800
Subject: [PATCH] core: Add support for calls in get_function_nonlocals
 (#29255)

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---
 libs/core/langchain_core/runnables/utils.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/libs/core/langchain_core/runnables/utils.py b/libs/core/langchain_core/runnables/utils.py
index a81ca7615a66f..89e3651dcce4c 100644
--- a/libs/core/langchain_core/runnables/utils.py
+++ b/libs/core/langchain_core/runnables/utils.py
@@ -271,6 +271,20 @@ def visit_Attribute(self, node: ast.Attribute) -> Any:
             if isinstance(parent, ast.Name):
                 self.loads.add(parent.id + "." + attr_expr)
                 self.loads.discard(parent.id)
+            elif isinstance(parent, ast.Call):
+                if isinstance(parent.func, ast.Name):
+                    self.loads.add(parent.func.id)
+                else:
+                    parent = parent.func
+                    attr_expr = ""
+                    while isinstance(parent, ast.Attribute):
+                        if attr_expr:
+                            attr_expr = parent.attr + "." + attr_expr
+                        else:
+                            attr_expr = parent.attr
+                        parent = parent.value
+                    if isinstance(parent, ast.Name):
+                        self.loads.add(parent.id + "." + attr_expr)
 
 
 class FunctionNonLocals(ast.NodeVisitor):