code: def _unwrap_parameter(self):
      return self._wrapped
  
imports: from collections import OrderedDict
  import math
  import os
  import pickle
  import subprocess
  import sys
  from pathlib import Path
  import pytest
  import nni
  import torch
  import torch.nn
  from torch.utils.data import DataLoader
  from torchvision import transforms
  from torchvision.datasets import MNIST
  from nni.common.serializer import is_traceable
label_desc: Use image node_id 2 for calling the CustomParameter obj's underlying member method code with example usage: obj._unwrap_parameter() and returns: self