code: func (this *summaryMetricsSource) addLabeledIntMetric(metrics *MetricSet, metric *Metric, labels map[string]string, value *uint64) {
  	if value == nil {
  		glog.V(9).Infof("skipping labeled metric %s (%v) because the value was nil", metric.Name, labels)
  		return
  	}
  
  	val := LabeledMetric{
  		Name:   metric.Name,
  		Labels: labels,
  		MetricValue: MetricValue{
  			ValueType:  ValueInt64,
  			MetricType: metric.Type,
  			IntValue:   int64(*value),
  		},
  	}
  	metrics.LabeledMetrics = append(metrics.LabeledMetrics, val)
  }
docs: // addLabeledIntMetric is a convenience method for adding the labeled metric and value to the metric set.