const go.opentelemetry.io/otel/api/trace.parentSpanIDWidth

3 uses

	go.opentelemetry.io/otel/api/trace (current package)
		b3_propagator.go#L42: 	parentSpanIDWidth   = 16      // 16 hex character ID.
		b3_propagator.go#L309: 			} else if headerLen == pos+parentSpanIDWidth {
		b3_propagator.go#L312: 			} else if headerLen == pos+samplingWidth+separatorWidth+parentSpanIDWidth {

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