code: def test_out_array(self):
      x = testing.shaped_arange((2, 3, 4, 5))
      out = cupy.empty((2, 3, 4, 5))
      self._get_gufunc()(x, out=out)
      testing.assert_allclose(x, out)
  
imports: import numpy
  import pytest
  import cupy
  from cupy import testing
  from cupy._core._gufuncs import _GUFunc
label_desc: Use image node_id 2 for calling the TestGUFuncOut obj's underlying member method code with example usage: obj.test_out_array() without return types