code: def setUp(self) -> None:
      patch_encryption()
  
imports: import torch.nn.functional
  import torch, os, io
  import base64
  import torch.nn
  import unittest
  import random
  from bigdl.nano.pytorch.patching import patch_encryption
  import torch.optim
label_desc: Use image node_id 1 for calling the TestModelSaveLoad obj's underlying member method code with example usage: obj.setUp() without return types