code: def test_conj(self, xp, dtype):
      x = testing.shaped_arange((2, 3), xp, dtype)
      return x.conj()
  
imports: import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestConj obj's underlying member method code with example usage: obj.test_conj(xp, dtype) and returns: x