code: def tearDown(self):
      Tensor.wino = self.old
  
file_path: tinygrad/test/test_winograd.py
imports: import unittest
  from tinygrad.helpers import Timing, CI, Profiling
  from tinygrad.tensor import Tensor
  from tinygrad.ops import LoadOps
  from tinygrad.codegen.linearizer import Linearizer
label_desc: Use image node_id 2 for calling the TestWinograd obj's underlying member method code with example usage: obj.tearDown() without return types