const go.opentelemetry.io/otel/trace.SpanKindProducer

3 uses

	go.opentelemetry.io/otel/trace (current package)
		trace.go#L457: 	SpanKindProducer SpanKind = 4
		trace.go#L472: 		SpanKindProducer,
		trace.go#L490: 	case SpanKindProducer: