code: def reset(self):
      self.scorers = [
          Scorer(metric)
          for metric in (Scorer.muc, Scorer.b_cubed, Scorer.ceafe)
      ]
  
imports: from __future__ import division
  from __future__ import absolute_import
  from collections import Counter
  from sklearn.utils.linear_assignment_ import linear_assignment
  import numpy
  import torch
  from allennlp.training.metrics.metric import Metric
label_desc: Use image node_id 4 for calling the ConllCorefScores obj's underlying member method code with example usage: obj.reset() without return types