metrics

type Writer interface {
	// dogstatsd metrics
	Incr(workflow.Context, string, ...string)
	Decr(workflow.Context, string, ...string)
	Gauge(workflow.Context, string, float64, ...string)
	Timing(workflow.Context, string, time.Duration, ...string)

	// datadog specific
	Event(workflow.Context, *statsd.Event)

	Flush(workflow.Context)
}