code: def setUp(self):
      self._var = os.environ.get("TORCH_EXTENSIONS_DIR")
      self.tempdir = tempfile.mkdtemp()
      os.environ["TORCH_EXTENSIONS_DIR"] = self.tempdir
  
file_path: MONAI/tests/test_gmm.py
imports: from __future__ import annotations
  import os
  import shutil
  import tempfile
  import unittest
  import numpy
  import torch
  from parameterized import parameterized
  from monai._extensions import load_module
  from monai.networks.layers import GaussianMixtureModel
  from tests.utils import skip_if_darwin, skip_if_no_cuda, skip_if_quick, skip_if_windows
label_desc: Use image node_id 1 for calling the GMMTestCase obj's underlying member method code with example usage: obj.setUp() without return types