code: func (sb *StatsdBuffer) Gauge(stat string, value int64) error {
  	sb.eventChannel <- &event.Gauge{Name: stat, Value: value}
  	return nil
  }
docs: // Gauge - Gauges are a constant data type. They are not subject to averaging,
  // and they don’t change unless you change them. That is, once you set a gauge value,
  // it will be a flat line on the graph until you change it again