code: def test_cipher(ctx, t1_f32):
      kit = ctx.cipher.phe.setup({})
      encryptor, decryptor = (
          kit.get_tensor_encryptor(),
          kit.get_tensor_decryptor(),
      )
      encrypted = encryptor.encrypt_tensor(t1_f32)
      print(torch.to_local_f(decryptor.decrypt_tensor(encrypted)))
  
imports: import pytest
  import torch
  from fate.arch import Context
  from fate.arch.computing.backends.standalone import CSession
  from fate.arch.federation.backends.standalone import StandaloneFederation
  from fate.arch.tensor import DTensor
  from pytest import fixture
label_desc: Use image node_id 9 for calling a global function with example usage: test_cipher(ctx, t1_f32) without return types