Update langgraph_impl/my_agent.py

langgraph_impl/my_agent.py

@@ -17,7 +17,7 @@ def create_langchain_agent() -> AgentExecutor:
     llm = ChatOpenAI(
         model_name="gpt-4o",
         temperature=0.1,
-        openai_api_key=os.getenv("OPENAI_API_KEY"),
+        openai_api_key=os.getenv("OPEN_AI_TOKEN"),
     )
 
     tools = [