code: def setUpClass(cls):
      init_default_scope("mmdet")
  
file_path: mmdetection/tests/test_models/test_mot/test_qdtrack.py
imports: import time
  import unittest
  from unittest import TestCase
  import torch
  from mmengine.logging import MessageHub
  from mmengine.registry import init_default_scope
  from parameterized import parameterized
  from mmdet.registry import MODELS
  from mmdet.testing import demo_track_inputs, get_detector_cfg
label_desc: Use image node_id 1 for calling the TestQDTrack obj's underlying member method code with example usage: obj.setUpClass(cls) without return types