IDriverMetricsProviderGauge Method

Creates a gauge metric. bucket will contain the prefix configured with SetBucketPrefix(String), session name and node's address. Node's address will only be in the bucket name when metric is a NodeMetric. Implementations can call Equals(Object) to test if metric is a particular NodeMetric or SessionMetric.

IDriverGauge Gauge(
	string bucket,
	IMetric metric,
	Func<Nullable<double>> valueProvider
)