code: def test_feedback_missing_rating(client):
      response = client.post("/feedback?uid=195&iid=795")
      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 10 for calling a global function with example usage: test_feedback_missing_rating(client) without return types