'x-cloud-trace-context',

        # Grpc binary trace context. Compatible with OpenCensusAgent nad
        # Stackdriver Istio configurations.
        'grpc-trace-bin',

        # b3 trace headers. Compatible with Zipkin, OpenCensusAgent, and
        # Stackdriver Istio configurations.
        # This is handled by opentelemetry above
        # 'x-b3-traceid',
        # 'x-b3-spanid',
        # 'x-b3-parentspanid',

		}
		if stopTrace {
			if !trace.full[1-(gen%2)].empty() {
				throw("trace: non-empty full trace buffer for next generation")
			}
			if trace.reading != nil || trace.reader.Load() != nil {
				throw("trace: reading after shutdown")
			}
			// Free all the empty buffers.
			for trace.empty != nil {
				buf := trace.empty
				trace.empty = buf.link

	// Perform a traceAcquire/traceRelease on behalf of mp to
	// synchronize with the tracer trying to flush our buffer
	// as well.
	seq := mp.trace.seqlock.Add(1)
	if debugTraceReentrancy && seq%2 != 1 {
		throw("bad use of trace.seqlock or tracer is reentrant")
	}
	systemstack(func() {
		lock(&trace.lock)
		for i := range mp.trace.buf {
			if mp.trace.buf[i] != nil {
				// N.B. traceBufFlush accepts a generation, but it

                                              Device* device,
                                              Tensor* cpu_tensor,
                                              StatusCallback done) {
  tsl::profiler::TraceMe traceme("PjRtDeviceContext::CopyDeviceTensorToCPU");
  if (device_tensor->NumElements() == 0) {
    VLOG(2) << "CopyDeviceTensorToCPU empty tensor";
    done(absl::OkStatus());
    return;
  }

	"istio.io/istio/pkg/log"
	"istio.io/istio/pkg/wellknown"
)

const (
	envoyDatadog       = "envoy.tracers.datadog"
	envoyOpenTelemetry = "envoy.tracers.opentelemetry"
	envoySkywalking    = "envoy.tracers.skywalking"
	envoyZipkin        = "envoy.tracers.zipkin"
)

// this is used for testing. it should not be changed in regular code.
var clusterLookupFn = model.LookupCluster

		{"meshConfig.defaultConfig.tracing.stackdriver.debug", "Istio supported tracers", false},
		{"meshConfig.defaultConfig.tracing.stackdriver.maxNumberOfAttributes", "Istio supported tracers", 0},
		{"meshConfig.defaultConfig.tracing.stackdriver.maxNumberOfAnnotations", "Istio supported tracers", 0},
		{"meshConfig.defaultConfig.tracing.stackdriver.maxNumberOfMessageEvents", "Istio supported tracers", 0},
	}

	for _, d := range warningSettings {

	"cmd/internal/telemetry"
	"flag"
	"fmt"
	"internal/trace"
	"internal/trace/raw"
	"internal/trace/traceviewer"
	"io"
	"log"
	"net"
	"net/http"
	_ "net/http/pprof" // Required to use pprof
	"os"
	"sync/atomic"
	"time"
)

const usageMessage = "" +
	`Usage of 'go tool trace':
Given a trace file produced by 'go test':
	go test -trace=trace.out pkg

Open a web browser displaying trace:

func (u *unifier) nify(x, y Type, mode unifyMode, p *ifacePair) (result bool) {
	u.depth++
	if traceInference {
		u.tracef("%s ≡ %s\t// %s", x, y, mode)
	}
	defer func() {
		if traceInference && !result {
			u.tracef("%s ≢ %s", x, y)
		}
		u.depth--
	}()

	// nothing to do if x == y
	if x == y || Unalias(x) == Unalias(y) {
		return true
	}

        - --lightstepCacertPath
        - "{{ .ProxyConfig.GetTracing.GetLightstep.GetCacertPath }}"
      {{- else if eq .Values.global.proxy.tracer "zipkin" }}
        - --zipkinAddress
        - "{{ .ProxyConfig.GetTracing.GetZipkin.GetAddress }}"
      {{- else if eq .Values.global.proxy.tracer "datadog" }}
        - --datadogAgentAddress
        - "{{ .ProxyConfig.GetTracing.GetDatadog.GetAddress }}"
      {{- end }}

        - --lightstepCacertPath
        - "{{ .ProxyConfig.GetTracing.GetLightstep.GetCacertPath }}"
      {{- else if eq .Values.global.proxy.tracer "zipkin" }}
        - --zipkinAddress
        - "{{ .ProxyConfig.GetTracing.GetZipkin.GetAddress }}"
      {{- else if eq .Values.global.proxy.tracer "datadog" }}
        - --datadogAgentAddress
        - "{{ .ProxyConfig.GetTracing.GetDatadog.GetAddress }}"
      {{- end }}