code: def test_no_token():
      response = client.get("/items")
      assert response.status_code == 200, response.text
      assert response.json() == {"msg": "Create an account first"}
  
imports: from typing import Optional
  from fastapi import FastAPI, Security
  from fastapi.security import OAuth2PasswordBearer
  from fastapi.testclient import TestClient
label_desc: Use image node_id 1 for calling a global function with example usage: test_no_token() without return types