class_docstr: Computes and stores the average and current value
class_docstr_tok: ["Computes","and","stores","the","average","and","current","value"]
code: def update(self, val, n=1):
      self.val = val
      self.sum += val * n
      self.count += n
      self.avg = self.sum / self.count
      return self
  
file_path: PaddleOCR/benchmark/PaddleOCR_DBNet/utils/ocr_metric/icdar2015/quad_metric.py
imports: import numpy
  from .detection.iou import DetectionIoUEvaluator
label_desc: Use image node_id 3 for calling the AverageMeter obj's underlying member method code with example usage: obj.update(val, n) and returns: self