code: def setUpClass(cls) -> None:
      conf = {
          "epistemic_model": "spleen_ct_segmentation",
          "epistemic_max_samples": 0,
          "epistemic_simulation_size": 5,
          "epistemic_dropout": 0.2,
          "models": "spleen_ct_segmentation",
      }
      cls.client = create_client(
          cls.app_dir, cls.studies, cls.data_dir, conf=conf
      )
  
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 BasicBundleV2TestSuite obj's underlying member method code with example usage: obj.setUpClass(cls) without return types