code: def unpatch(self) -> torch.nn.Module:
      return self.__class__.unpatch_function(self.parent_module)
  
file_path: baal/baal/bayesian/common.py
imports: import copy
  import warnings
  from typing import Callable, Optional
  import torch
  from torch import nn
label_desc: Use image node_id 3 for calling the BayesianModule obj's underlying member method code with example usage: obj.unpatch() and returns: self