code: def tearDown(self):
      if os.path.exists(self.run_path):
          shutil.rmtree(self.run_path)
  
imports: import unittest
  import omegaconf
  from omegaconf import OmegaConf, DictConfig
  import os
  import sys
  import hydra
  import shutil
  import torch
  from mockdatasets import MockDatasetGeometric
  from torch_points3d.models.model_factory import instantiate_model
  from torch_points3d.utils.model_building_utils.model_definition_resolver import resolve_model
  from torch_points3d.metrics.model_checkpoint import ModelCheckpoint
label_desc: Use image node_id 5 for calling the TestModelCheckpoint obj's underlying member method code with example usage: obj.tearDown() without return types