code: def test_conjugate_pass(self, xp, dtype):
      x = testing.shaped_arange((2, 3), xp, dtype)
      y = x.conjugate()
      assert x is y
      return y
  
imports: import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 4 for calling the TestConj obj's underlying member method code with example usage: obj.test_conjugate_pass(xp, dtype) and returns: y