code: def reset(self):
      self.correct_num = 0
      self.all_num = 0
      self.len_acc_num = 0
      self.token_nums = 0
      self.anys_dict = dict()
  
file_path: PaddleOCR/ppocr/metrics/table_metric.py
imports: import numpy
  from ppocr.metrics.det_metric import DetMetric
label_desc: Use image node_id 4 for calling the TableStructureMetric obj's underlying member method code with example usage: obj.reset() without return types