code: def __call__(self, predicts, shape_list):
      results = {}
      for k in self.model_name:
          results[k] = self.post_process(
              predicts[k], shape_list=shape_list
          )
      return results
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import numpy
  import cv2
  import paddle
  from shapely.geometry import Polygon
  import pyclipper
label_desc: Use image node_id 2 for calling the DistillationDBPostProcess obj's underlying member method code with example usage: obj.__call__(predicts, shape_list) and returns: results