fix(langchain): remove getContextVariable and setContextVariable from langchain (#9330)

Author: christian-bromann

examples/src/createAgent/accessExternalContextInTools.ts

@@ -22,12 +22,11 @@
  */
 
 import fs from "node:fs/promises";
+import { createAgent, tool } from "langchain";
 import {
-  createAgent,
-  tool,
-  setContextVariable,
   getContextVariable,
-} from "langchain";
+  setContextVariable,
+} from "@langchain/core/context";
 import { z } from "zod";
 
 /**

libs/langchain/src/index.ts

@@ -48,14 +48,6 @@ export * from "./agents/middleware/index.js";
  */
 export { InMemoryStore } from "@langchain/core/stores";
 
-/**
- * LangChain Context
- */
-export {
-  setContextVariable,
-  getContextVariable,
-} from "@langchain/core/context";
-
 /**
  * LangChain Documents
  */