gauge.go
func (m *CirconusMetrics) Gauge(metric string, val interface{}) {
	m.SetGauge(metric, val)
}
func (m *CirconusMetrics) Gauge(metric string, val interface{}) {
	m.SetGauge(metric, val)
}
func ( m * CirconusMetrics ) Gauge ( metric string , val interface { } ) { m . SetGauge ( metric , val ) }
// Gauge sets a gauge to a value
Gauge sets a gauge to a value