code: def append(self, __tfm: BaseTransformation):
      self._tfms.append(__tfm)
  
imports: import copy
  from abc import ABC, abstractmethod
  from typing import List, Any, Dict
  import numpy
  from nebullvm.optional_modules.tensorflow import tensorflow
  from nebullvm.optional_modules.torch import torch
label_desc: Use image node_id 3 for calling the MultiStageTransformation obj's underlying member method code with example usage: obj.append(__tfm) without return types