code: def setUpClass(cls) -> None:
      super().setUpClass()
      cls.client = TestClient(app)
  
imports: import unittest
  from fastapi.testclient import TestClient
  from tests.utils import truncate_api_db, full_class_name, fill_up_test_data
  from aim.sdk.repo import Repo
  from aim.sdk.run import Run
  from aim.web.run import app
label_desc: Use image node_id 1 for calling the ApiTestBase obj's underlying member method code with example usage: obj.setUpClass(cls) without return types