stats

type Counter interface {
	Count(n int)
	Increment()
}

type Gauge interface {
	Gauge(value interface{})
}

type Histogram interface {
	Observe(value float64)
}

type Measurement interface {
	Counter
	Gauge
	Histogram
	Timer
}

type Stats interface {
	// NewStat creates an untagged measurement
	NewStat(name, statType string) (m Measurement)

	// NewTaggedStat creates a tagged measurement with a sampling rate of 1.0
	NewTaggedStat(name, statType string, tags Tags) Measurement

	// NewSampledTaggedStat creates a tagged measurement with the configured sampling rate (statsSamplingRate)
	NewSampledTaggedStat(name, statType string, tags Tags) Measurement

	// Start starts the stats service. It tries to connect to statsd server once and returns immediately.
	// If it fails to connect, it will retry in the background indefinitely, however any stats published in the meantime will be lost.
	Start(ctx context.Context)

	// Stops stops the service and collection of periodic stats.
	Stop()
}

type Tags map[string]string

type Timer interface {
	Start()
	End()
	SendTiming(duration time.Duration)
	Since(start time.Time)
}