code: def __init__(self, use_dark=True):
      self.use_dark = use_dark
  
imports: from scipy.optimize import linear_sum_assignment
  from collections import abc, defaultdict
  import cv2
  import numpy
  import math
  import paddle
  import paddle.nn
  from keypoint_preprocess import get_affine_mat_kernel, get_affine_transform
label_desc: Use image node_id 1 to create a new HRNetPostProcess object from inherited base classes: object with example: obj = HRNetPostProcess(use_dark)