code: def test_basic(self):
      result = np.append([1, 2, 3], [[4, 5, 6], [7, 8, 9]])
      assert_equal(result, np.arange(1, 10, dtype=int))
  
      # When `axis` is specified, `values` must have the correct shape.
      result = np.append([[1, 2, 3], [4, 5, 6]], [[7, 8, 9]], axis=0)
      assert_equal(result, np.arange(1, 10, dtype=int).reshape((3, 3)))
  
      with pytest.raises((RuntimeError, ValueError)):
          np.append([[1, 2, 3], [4, 5, 6]], [7, 8, 9], axis=0)
  
imports: import pytest
  from torch.testing._internal.common_utils import run_tests, TEST_WITH_TORCHDYNAMO, TestCase
label_desc: Use image node_id 1 for calling the TestAppend obj's underlying member method code with example usage: obj.test_basic() without return types