code: def setUpClass(cls) -> None:
      cls.client = create_client(
          cls.app_dir,
          cls.studies,
          cls.data_dir,
          {
              "models": "deepgrow_2d,deepgrow_3d,segmentation_spleen,deepedit"
          },
      )
  
imports: import json
  import logging
  import os
  import random
  import time
  import unittest
  from fastapi.testclient import TestClient
  from monailabel.config import settings
label_desc: Use image node_id 1 for calling the BasicEndpointV2TestSuite obj's underlying member method code with example usage: obj.setUpClass(cls) without return types