code: def test_functional_optim_registration(self):
      self._test_functional_optim_registration()
  
imports: from typing import List, Optional, Tuple
  import unittest
  import torch
  import torch.distributed
  import torch.nn
  import torch.nn.functional
  from torch import Tensor
  from torch.optim import SGD, Adam, AdamW
  from torch.testing._internal.common_utils import TestCase, run_tests
label_desc: Use image node_id 4 for calling the TestFunctionalOptimParity obj's underlying member method code with example usage: obj.test_functional_optim_registration() without return types