code: def test_biary_out_positional_none(self, xp):
      dtype = xp.float64
      a = testing.shaped_arange((2, 3), xp, dtype)
      b = xp.ones((2, 3), dtype)
      return xp.add(a, b, None)
  
imports: import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 5 for calling the TestUfunc obj's underlying member method code with example usage: obj.test_biary_out_positional_none(xp) and returns: xp