code: def test_post_user():
      response = client.post(
          "/user/",
          json={
              "username": "foo",
              "password": "fighter",
              "email": "foo@example.com",
              "full_name": "Grave Dohl",
          },
      )
      assert response.status_code == 200, response.text
      assert response.json() == {
          "username": "foo",
          "email": "foo@example.com",
          "full_name": "Grave Dohl",
      }
  
imports: from dirty_equals import IsDict, IsOneOf
  from fastapi.testclient import TestClient
  from docs_src.response_model.tutorial003 import app
label_desc: Use image node_id 1 for calling a global function with example usage: test_post_user() without return types