docstr: return metrics {
           'precision': 0,
           'recall': 0,
           'hmean': 0
      }
docstr_tok: ["return","metrics","{","'precision","'",":","0",",","'recall","'",":","0",",","'hmean","'",":","0","}"]
code: def get_metric(self):
      """
      return metrics {
               'precision': 0,
               'recall': 0,
               'hmean': 0
          }
      """
  
      metrics = self.evaluator.combine_results(self.results)
      self.reset()
      return metrics
  
file_path: PaddleOCR/ppocr/metrics/det_metric.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from .eval_det_iou import DetectionIoUEvaluator
label_desc: Use image node_id 3 for calling the DetMetric obj's underlying member method code with example usage: obj.get_metric() and returns: metrics