code: def test_openapi_schema():
      response = client.get("/openapi.json")
      assert response.status_code == 200, response.text
      assert response.json() == {
          "openapi": "3.1.0",
          "info": {"title": "FastAPI", "version": "0.1.0"},
          "paths": {},
      }
  
label_desc: Use image node_id 2 for calling a global function with example usage: test_openapi_schema() without return types