code: def test_expand(self):
      t = Tensor.full((3, 2, 0), 12).expand((6, 2, 0))
      assert t.shape == (6, 2, 0)
      np.testing.assert_equal(t.numpy(), np.full((6, 2, 0), 12))
  
imports: import numpy
  import torch
  import unittest, copy
  import mmap
  from tinygrad import Tensor, Device, dtypes
  from tinygrad.helpers import temp
  from extra.gradcheck import numerical_jacobian, jacobian, gradcheck
label_desc: Use image node_id 5 for calling the TestZeroShapeTensor obj's underlying member method code with example usage: obj.test_expand() without return types