code: def dist(self, a, b):
      return np.linalg.norm((a - b), ord=2, axis=0)
  
imports: import os
  import cv2
  import random
  import pyclipper
  import paddle
  import numpy
  from ppocr.utils.utility import check_install
  import scipy.io
  from PIL import Image
  import paddle.vision.transforms
label_desc: Use image node_id 2 for calling the MakeShrink obj's underlying member method code with example usage: obj.dist(a, b) and returns: np