code: def test_0d(self):
      assert_equal(r_[0, np.array(1), 2], [0, 1, 2])
      assert_equal(r_[[0, 1, 2], np.array(3)], [0, 1, 2, 3])
      assert_equal(r_[np.array(0), [1, 2, 3]], [0, 1, 2, 3])
  
imports: import functools
  from unittest import expectedFailure, skipIf
  from pytest import raises
  from torch.testing._internal.common_utils import instantiate_parametrized_tests, parametrize, run_tests, TEST_WITH_TORCHDYNAMO, TestCase, xpassIfTorchDynamo
label_desc: Use image node_id 6 for calling the TestConcatenator obj's underlying member method code with example usage: obj.test_0d() without return types