api "go.opentelemetry.io/otel/metric"
	"go.opentelemetry.io/otel/sdk/metric"

	"istio.io/istio/pkg/log"
	"istio.io/istio/pkg/maps"
	"istio.io/istio/pkg/slices"
)

var (
	meter = func() api.Meter {
		return otel.GetMeterProvider().Meter("istio")
	}

	monitoringLogger = log.RegisterScope("monitoring", "metrics monitoring")
)

func init() {
	otel.SetLogger(log.NewLogrAdapter(monitoringLogger))
}

	// precomputedAddOption is just a precomputation to avoid allocations on each record call
	precomputedAddOption []api.AddOption
}

var _ Metric = &counter{}

func newCounter(o options) *counter {
	c, err := meter().Float64Counter(o.name,
		api.WithDescription(o.description),
		api.WithUnit(string(o.unit)))
	if err != nil {
		log.Fatalf("failed to create counter: %v", err)
	}
	r := &counter{c: c}
	r.baseMetric = baseMetric{

}

var _ DerivedMetric = &derivedGauge{}

func newDerivedGauge(name, description string) DerivedMetric {
	dm := &derivedGauge{
		name:  name,
		attrs: map[attribute.Set]func() float64{},
	}
	_, err := meter().Float64ObservableGauge(name,
		api.WithDescription(description),
		api.WithFloat64Callback(func(ctx context.Context, observer api.Float64Observer) error {
			dm.mu.RLock()
			defer dm.mu.RUnlock()

	precomputedRecordOption []api.RecordOption
}

var _ Metric = &distribution{}

func newDistribution(o options) *distribution {
	d, err := meter().Float64Histogram(o.name,
		api.WithDescription(o.description),
		api.WithUnit(string(o.unit)))
	if err != nil {
		log.Fatalf("failed to create distribution: %v", err)
	}
	r := &distribution{d: d}

import org.eclipse.aether.transfer.TransferCancelledException;
import org.eclipse.aether.transfer.TransferEvent;
import org.eclipse.aether.transfer.TransferResource;

/**
 * Console download progress meter.
 * <p>
 * This listener is not thread-safe and should be wrapped in the {@link SimplexTransferListener} in a multi-threaded scenario.
 */
public class ConsoleMavenTransferListener extends AbstractMavenTransferListener {

}

var _ Metric = &gauge{}

func newGauge(o options) *gauge {
	r := &gauge{
		attributeSetsMutex: &sync.RWMutex{},
	}
	r.attributeSets = map[attribute.Set]*gaugeValues{}
	g, err := meter().Float64ObservableGauge(o.name,
		api.WithFloat64Callback(func(ctx context.Context, observer api.Float64Observer) error {
			r.attributeSetsMutex.Lock()
			defer r.attributeSetsMutex.Unlock()

a.cloneNode||"undefined"==typeof a.createDocumentFragment||"undefined"==typeof a.createElement}()}catch(c){k=!0,l=!0}}();var t={elements:n.elements||"abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output picture progress section summary template time video",version:m,shivCSS:n.shivCSS!==!1,supportsUnknownElements:l,shivMethods:n.shivMethods!==!1,type:"default",shivDocument:j,createElement:g,createDocumentFragment:h,addElements:e};a.html...

b=a(this).val(),c="undefined"==typeof d.parent?a(this).parent():a(d.parent),e=c.find(".strength-meter"),f=a.formUtils.validators.validate_strength.calculatePasswordStrength(b),g={background:"pink",color:"#FF0000",fontWeight:"bold",border:"red solid 1px",borderWidth:"0px 0px 4px",display:"inline-block",fontSize:d.fontSize,padding:d.padding},h=d.bad;0===e.length&&(e=a("<span></span>"),e.addClass("strength-meter").appendTo(c)),b?e.show():e.hide(),1===f?h=d.weak:2===f?(g.background="lightyellow",g.borde...

		&compbasemetrics.CounterOpts{
			Namespace:      namespace,
			Subsystem:      subsystem,
			Name:           "epoch_advance_total",
			Help:           "Number of times the queueset's progress meter jumped backward",
			StabilityLevel: compbasemetrics.ALPHA,
		},
		[]string{priorityLevel, "success"},
	)
	apiserverWorkEstimatedSeats = compbasemetrics.NewHistogramVec(
		&compbasemetrics.HistogramOpts{

// rDecrement is the amount by which the progress meter R is wound backwards
// when needed to avoid overflow.
const rDecrement = fqrequest.MaxSeatSeconds / 2

// highR is the threshold that triggers advance of the epoch.
// That is, decrementing the global progress meter R by rDecrement.
const highR = rDecrement + rDecrement/2

// advanceEpoch subtracts rDecrement from the global progress meter R