code: def test_tensor_register_global_hooks_handles_in_list(self):
      def fn(x):
          global h0
          h0 = x.register_hook(global_hook_0)  # * 4
          return x, x * x
  
      cnts = torch._dynamo.testing.CompileCounter()
      fn = torch._dynamo.optimize(cnts)(fn)
      v = torch.tensor([0.0, 0.0, 0.0], requires_grad=True)
      v, r = fn(v)
  
      self.assertIsNotNone(h0)
      v.backward(torch.tensor([1.0, 2.0, 3.0]))
      self.assertEqual(v.grad, torch.tensor([4.0, 8.0, 12.0]))
      h0.remove()
  
      v.backward(torch.tensor([1.0, 2.0, 3.0]))
      # Handles gone, grad is just applied as is
      self.assertEqual(v.grad, torch.tensor([5.0, 10.0, 15.0]))
  
      # NYI!
      self.assertEqual(cnts.frame_count, 0)
  
imports: import contextlib
  import functools
  import torch
  import torch._dynamo
  import torch._dynamo.test_case
  import torch._dynamo.testing
  from functorch.compile import nop
  from torch._dynamo import compiled_autograd
  from torch._functorch.aot_autograd import aot_module_simplified
label_desc: Use image node_id 14 for calling the HooksTests obj's underlying member method code with example usage: obj.test_tensor_register_global_hooks_handles_in_list() and returns: x,  unknown