code: def _create_checkpoint_folder(self, path):
      model_folder = self._get_model_folder()
      model_file = os.path.join(model_folder, "model.pth")
      config_file = os.path.join(model_folder, "config.yaml")
      shutil.copy(model_file, path)
      shutil.copy(config_file, path)
  
imports: import os
  import shutil
  import tempfile
  import unittest
  from pathlib import Path
  import numpy
  import tests.test_utils
  import torch
  from mmf.models.mmbt import MMBT
  from mmf.modules.hf_layers import undo_replace_with_jit
  from mmf.utils.configuration import get_mmf_env, load_yaml
  from mmf.utils.file_io import PathManager
  from mmf.utils.general import get_current_device
label_desc: Use image node_id 6 for calling the TestModelInterfaces obj's underlying member method code with example usage: obj._create_checkpoint_folder(path) without return types