code: def adjusted_mutual_info(self, reference_clusters):
          
          return adjusted_mutual_info_score(self.get_labels(self), self.get_labels(reference_clusters))
docs: Calculates the adjusted mutual information score w.r.t. the reference clusters (explicit evaluation)
  
          :param reference_clusters: Clusters that are to be used as reference
          :return: returns the value of the adjusted mutual information score