code: def test_shrink_const_into_zero(self):
      # regression test to make sure the shapetracker is preserved
      a = Tensor.zeros(4, 4, 4).shrink((None, (0, 0), None))
      b = Tensor.zeros(4, 1, 4)
      c = a.cat(b, dim=1)
      np.testing.assert_allclose(
          c.numpy(), np.concatenate((a.numpy(), b.numpy()), axis=1)
      )
  
file_path: tinygrad/test/test_lazybuffer.py
imports: import numpy
  import unittest
  from tinygrad import Tensor, Device, dtypes
  from tinygrad.device import Interpreted
label_desc: Use image node_id 7 for calling the TestLazyBuffer obj's underlying member method code with example usage: obj.test_shrink_const_into_zero() without return types