docstr: teardown any state that was previously setup with a setup_method
  call.
docstr_tok: ["teardown","any","state","that","was","previously","setup","with","a","setup_method","call","."]
code: def tearDown(self):
      """teardown any state that was previously setup with a setup_method
      call.
      """
      stop_orca_context()
  
file_path: BigDL/python/orca/test/bigdl/orca/learn/jep/test_pytorch_estimator_for_save_load.py
imports: from unittest import TestCase
  import os
  import pytest
  import torch
  import torch.nn
  import torch.nn.functional
  from torchvision import datasets, transforms
  from bigdl.orca import init_orca_context, stop_orca_context
  from bigdl.orca import OrcaContext
  from bigdl.orca.learn.pytorch import Estimator
  from bigdl.orca.learn.metrics import Accuracy
  from bigdl.orca.learn.trigger import EveryEpoch
label_desc: Use image node_id 2 for calling the TestEstimatorForSaveAndLoad obj's underlying member method code with example usage: obj.tearDown() without return types