code: def dummy(self) -> ep.Tensor:
      return self._dummy
  
imports: from typing import TypeVar, Callable, Optional, Tuple, Any
  from abc import ABC, abstractmethod
  import copy
  import eagerpy
  from ..types import Bounds, BoundsInput, Preprocessing
  from ..devutils import atleast_kd
label_desc: Use image node_id 3 for calling the ModelWithPreprocessing obj's underlying member method code with example usage: obj.dummy() and returns: self