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 Option func(*statsConfig)

type Stats interface {
	// NewStat creates a new Measurement with provided Name and Type
	NewStat(name, statType string) (m Measurement)

	// NewTaggedStat creates a new Measurement with provided Name, Type and Tags
	NewTaggedStat(name, statType string, tags Tags) Measurement

	// NewSampledTaggedStat creates a new Measurement with provided Name, Type and Tags
	// Deprecated: use NewTaggedStat instead
	NewSampledTaggedStat(name, statType string, tags Tags) Measurement

	// Start starts the stats service and the collection of periodic stats.
	Start(ctx context.Context) error

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

type Tags map[string]string

type Timer interface {
	SendTiming(duration time.Duration)
	Since(start time.Time)
	RecordDuration() func()
}