code: def tearDown(self):
      set_determinism(seed=None)
      shutil.rmtree(self.data_dir)
  
imports: from __future__ import annotations
  import math
  import os
  import shutil
  import tempfile
  import time
  import unittest
  from glob import glob
  import nibabel
  import numpy
  import torch
  import monai
  from monai.data import CacheDataset, ThreadDataLoader, create_test_image_3d, decollate_batch
  from monai.inferers import sliding_window_inference
  from monai.losses import DiceCELoss
  from monai.metrics import DiceMetric
  from monai.networks.layers import Norm
  from monai.networks.nets import UNet
  from monai.optimizers import Novograd
  from monai.transforms import AsDiscrete, Compose, CropForegroundd, EnsureChannelFirstd, FgBgToIndicesd, LoadImaged, RandAffined, RandAxisFlipd, RandCropByPosNegLabeld, RandFlipd, RandGaussianNoised, RandRotate90d, RandRotated, RandStdShiftIntensityd, RandZoomd, ScaleIntensityd, Spacingd, ToDeviced
  from monai.utils import set_determinism
  from tests.utils import DistTestCase, TimedCall, skip_if_no_cuda, skip_if_quick
label_desc: Use image node_id 2 for calling the IntegrationFastTrain obj's underlying member method code with example usage: obj.tearDown() without return types