code: def get_3rd_point(a, b):
      direct = a - b
      return b + np.array([-direct[1], direct[0]], dtype=np.float32)
  
file_path: insightface/parsing/dml_csr/utils/transforms.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import numpy
  import cv2
label_desc: Use image node_id 5 for calling a global function with example usage: get_3rd_point(a, b) and returns: unknown