code: def test_same_value_different_instance(self):
      prot = tfe.protocol.Pond()
      tfe.set_protocol(prot)
  
      expected = np.array([[1, 2, 3], [4, 5, 6]])
      x = prot.define_private_variable(expected)
      y = prot.identity(x)
      actual = y.reveal().to_native()
      assert x is not y
      np.testing.assert_array_equal(actual, expected)
  
imports: import unittest
  import numpy
  import pytest
  import tensorflow
  import tf_encrypted
  from tf_encrypted.protocol.pond import PondMaskedTensor
  from tf_encrypted.protocol.pond import PondPublicTensor
  from tf_encrypted.tensor import fixed100
  from tf_encrypted.tensor import fixed100_ni
  from tf_encrypted.tensor import int64factory
  from tf_encrypted.tensor import int100factory
  from tf_encrypted.tensor import native_factory
label_desc: Use image node_id 1 for calling the TestIdentity obj's underlying member method code with example usage: obj.test_same_value_different_instance() without return types