datadog: Datadog (x-datadog-) tracecontext: W3C Trace Context (traceparent, tracestate) b3: B3 Single Header (b3) b3multi: B3 Multiple Headers (X-B3-)
datadog: Datadog (x-datadog-) tracecontext: W3C Trace Context (traceparent, tracestate) b3: B3 Single Header (b3) b3multi: B3 Multiple Headers (X-B3-)