code: def target_shape(self):
      target_shape = (
          self.image_height + self.margin_bottom + self.margin_top,
          self.image_width + self.margin_right + self.margin_left,
      )
      return target_shape
  
imports: import dataclasses
  import math
  from typing import List, Iterable, Tuple, Union, Sequence
  import cv2
  import numpy
  import torch
label_desc: Use image node_id 5 for calling the ImageSlicer obj's underlying member method code with example usage: obj.target_shape() and returns: target_shape