code: def test_casting_out_only(self, in_type, out_type, casting):
      self.check_casting_out(in_type, in_type, out_type, casting)
  
imports: import itertools
  import warnings
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestUfunc obj's underlying member method code with example usage: obj.test_casting_out_only(in_type, out_type, casting) without return types