code: def kappa_score(self):
      return metrics.cohen_kappa_score(
          self.conditions, self.predictions
      )
  
imports: import logging
  from collections import OrderedDict
  import numpy
  from sklearn import metrics
  from sklearn.metrics import confusion_matrix
label_desc: Use image node_id 33 for calling the ConfusionMatrix obj's underlying member method code with example usage: obj.kappa_score() and returns: metrics