code: def rule_metric_names(self):
          
          if not self.check_type(self.jobject, "weka.associations.AssociationRulesProducer"):
              return None
          return string_array_to_list(
              javabridge.call(self.jobject, "getRuleMetricNames", "()[Ljava/lang/String;"))
docs: Returns the rule metric names of the association rules. Only if implements AssociationRulesProducer.
  
          :return: the metric names
          :rtype: list