code: def test_imag_setter(self, xp, dtype):
      x = testing.shaped_arange((2, 3), xp, dtype)
      x.imag = testing.shaped_reverse_arange((2, 3), xp, dtype).real
      return x
  
imports: import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 10 for calling the TestRealImag obj's underlying member method code with example usage: obj.test_imag_setter(xp, dtype) and returns: x