code: def test_cant_invert_stride(self):
      a = ShapeTracker.from_shape((10, 10))
      x = a.stride((2, 2))
      assert x.invert(a.shape) is None
  
imports: import unittest
  from typing import List
  from tinygrad.helpers import prod
  from tinygrad.shape.view import View
  from tinygrad.shape.shapetracker import ShapeTracker
  from tinygrad.shape.symbolic import Variable, sym_infer
label_desc: Use image node_id 9 for calling the TestShapeTrackerInvert obj's underlying member method code with example usage: obj.test_cant_invert_stride() without return types