code: def test_guess_v1(self):
      cfg = get_cfg()
      latest_ver = cfg.VERSION
      self._merge_cfg_str(cfg, _V1_CFG)
      self.assertEqual(cfg.VERSION, latest_ver)
  
imports: import os
  import tempfile
  import unittest
  import torch
  from omegaconf import OmegaConf
  from detectron2 import model_zoo
  from detectron2.config import configurable, downgrade_config, get_cfg, upgrade_config
  from detectron2.layers import ShapeSpec
  from detectron2.modeling import build_model
label_desc: Use image node_id 4 for calling the TestConfigVersioning obj's underlying member method code with example usage: obj.test_guess_v1() without return types