code: def __call__(self, pred_label, batch=None, *args, **kwargs):
      self.structure_metric(pred_label)
      if self.bbox_metric is not None:
          self.bbox_metric(*self.prepare_bbox_metric_input(pred_label))
  
file_path: PaddleOCR/ppocr/metrics/table_metric.py
imports: import numpy
  from ppocr.metrics.det_metric import DetMetric
label_desc: Use image node_id 2 for calling the TableMetric obj's underlying member method code with example usage: obj.__call__(pred_label, batch) without return types