code: def __repr__(self):
      s = (
          "iou: "
          + str(self.iou)
          + " tp: "
          + str(self.tp)
          + " fp: "
          + str(self.fp)
          + " fn: "
          + str(self.fn)
      )
      return s
  
file_path: PaddleSeg/contrib/PanopticDeepLab/utils/evaluation/panoptic.py
imports: from collections import defaultdict, OrderedDict
  import numpy
label_desc: Use image node_id 3 for calling the PQStatCat obj's underlying member method code with example usage: obj.__repr__() and returns: s