code: def __call__(self, data):
      data = self.generate_targets(data)
      return data
  
imports: import cv2
  import numpy
  from ppocr.utils.utility import check_install
  from numpy.linalg import norm
label_desc: Use image node_id 20 for calling the DRRGTargets obj's underlying member method code with example usage: obj.__call__(data) and returns: data