code: def test_simple(self):
      check_real_value(ncu._arg, 1, 0, 0, False)
      check_real_value(ncu._arg, 0, 1, 0.5 * np.pi, False)
  
      check_real_value(ncu._arg, 1, 1, 0.25 * np.pi, False)
      check_real_value(ncu._arg, ncu.PZERO, ncu.PZERO, ncu.PZERO)
  
imports: import sys
  import platform
  import pytest
  import numpy
  import numpy._core._multiarray_umath
  from numpy.testing import assert_raises, assert_equal, assert_array_equal, assert_almost_equal, assert_array_max_ulp
label_desc: Use image node_id 1 for calling the TestCarg obj's underlying member method code with example usage: obj.test_simple() without return types