code: def test_shrink_into_zero(self):
      t = Tensor.rand(3, 4).realize()
      assert t.shrink((None, (2, 2))).realize().shape == (3, 0)
      assert t.shrink(((2, 2), None)).realize().shape == (0, 4)
      assert t.shrink(((2, 2), (2, 2))).realize().shape == (0, 0)
  
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 7 for calling the TestZeroShapeTensor obj's underlying member method code with example usage: obj.test_shrink_into_zero() without return types