state, ok := o.pStates[curCtx.P]
	if !ok {
		return curCtx, false, fmt.Errorf("event %s for proc (%v) that doesn't exist", go122.EventString(ev.typ), curCtx.P)
	}
	if state.status != go122.ProcRunning && state.status != go122.ProcSyscall {
		return curCtx, false, fmt.Errorf("%s event for proc that's not %s or %s", go122.EventString(ev.typ), go122.ProcRunning, go122.ProcSyscall)
	}

	case go122.EvHeapGoal:
		m.Name = "/gc/heap/goal:bytes"
		m.Value = Value{kind: ValueUint64, scalar: e.base.args[0]}
	default:
		panic(fmt.Sprintf("internal error: unexpected event type for Metric kind: %s", go122.EventString(e.base.typ)))
	}
	return m
}

// Label returns details about a Label event.
//
// Panics if Kind != EventLabel.
func (e Event) Label() Label {
	if e.Kind() != EventLabel {

	if err != nil {
		return batch{}, 0, err
	}
	if typ := event.Type(b); typ != go122.EvEventBatch && typ != go122.EvExperimentalBatch {
		return batch{}, 0, fmt.Errorf("expected batch event, got %s", go122.EventString(typ))
	}

	// Read the experiment of we have one.
	exp := event.NoExperiment
	if event.Type(b) == go122.EvExperimentalBatch {
		e, err := r.ReadByte()
		if err != nil {
			return batch{}, 0, err
		}

	EvGoroutineStack      // stack exists [timestamp, id, order]
	EvGoroutineStackAlloc // stack alloc [timestamp, id, order]
	EvGoroutineStackFree  // stack free [timestamp, id]
)

// EventString returns the name of a Go 1.22 event.
func EventString(typ event.Type) string {
	if int(typ) < len(specs) {
		return specs[typ].Name
	}
	return fmt.Sprintf("Invalid(%d)", typ)
}

func Specs() []event.Spec {
	return specs[:]