code: def __init__(self, main_indicator, delimiter="\t", **kwargs):
      self.delimiter = delimiter
      self.main_indicator = main_indicator
      self.reset()
  
file_path: PaddleOCR/ppocr/metrics/ct_metric.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  from scipy import io
  import numpy
  from ppocr.utils.e2e_metric.Deteval import combine_results, get_score_C
label_desc: Use image node_id 1 to create a new CTMetric object from inherited base classes: object with example: obj = CTMetric(main_indicator, delimiter)