code: def test_feedback(client):
      response = client.post("/feedback?uid=930&iid=795&rating=5")
      assert response.status_code == 200
  
file_path: cornac/tests/cornac/serving/test_app.py
imports: import os
  import pytest
  from cornac.data import Reader, Dataset
  from cornac.models import BPR
label_desc: Use image node_id 7 for calling a global function with example usage: test_feedback(client) without return types