How to use the @glimmer/reference.value function in @glimmer/reference

untrack(() => {
          ret = this._getter!.call(obj, keyName);
        });
      }

      if (this._dependentKeys !== undefined) {
        let tag = combine(getChainTagsForKeys(obj, this._dependentKeys));

        upstreamTag = upstreamTag === undefined ? tag : combine([upstreamTag, tag]);
      }

      if (upstreamTag !== undefined) {
        update(propertyTag!, upstreamTag);
      }

      setLastRevisionFor(obj, keyName, tagValue(propertyTag));

      cache.set(keyName, ret);

      finishLazyChains(obj, keyName, ret);
    }

    consume(propertyTag!);

    // Add the tag of the returned value if it is an array, since arrays
    // should always cause updates if they are consumed and then changed
    if (Array.isArray(ret) || isEmberArray(ret)) {
      consume(tagForProperty(ret, '[]'));
    }

    return ret;
  }

export function activateObserver(target: object, eventName: string, sync = false) {
  let activeObservers = getOrCreateActiveObserversFor(target, sync);

  if (activeObservers.has(eventName)) {
    activeObservers.get(eventName)!.count++;
  } else {
    let [path] = eventName.split(':');
    let tag = combine(getChainTagsForKey(target, path));

    activeObservers.set(eventName, {
      count: 1,
      path,
      tag,
      lastRevision: value(tag),
      suspended: false,
    });
  }
}

_revalidate() {
    if (
      !this._arrangedContentIsUpdating &&
      !validate(this._arrangedContentTag, this._arrangedContentRevision)
    ) {
      this._arrangedContentIsUpdating = true;
      this._updateArrangedContentArray();
      this._arrangedContentIsUpdating = false;

      this._arrangedContentTag = combine(getChainTagsForKey(this, 'arrangedContent'));
      this._arrangedContentRevision = value(this._arrangedContentTag);
    }
  }
}

update(bucket: ComponentStateBucket): void {
    let { component, args, argsRevision, environment } = bucket;

    if (ENV._DEBUG_RENDER_TREE) {
      environment.debugRenderTree.update(bucket);
    }

    bucket.finalizer = _instrumentStart('render.component', rerenderInstrumentDetails, component);

    if (args && !validate(args.tag, argsRevision)) {
      let props = processComponentArgs(args!);

      bucket.argsRevision = value(args!.tag);

      component[IS_DISPATCHING_ATTRS] = true;
      component.setProperties(props);
      component[IS_DISPATCHING_ATTRS] = false;

      component.trigger('didUpdateAttrs');
      component.trigger('didReceiveAttrs');
    }

    if (environment.isInteractive) {
      component.trigger('willUpdate');
      component.trigger('willRender');
    }
  }

export function flushAsyncObservers(shouldSchedule = true) {
  if (lastKnownRevision === value(CURRENT_TAG)) {
    return;
  }

  lastKnownRevision = value(CURRENT_TAG);

  ASYNC_OBSERVERS.forEach((activeObservers, target) => {
    let meta = peekMeta(target);

    if (meta && (meta.isSourceDestroying() || meta.isMetaDestroyed())) {
      ASYNC_OBSERVERS.delete(target);
      return;
    }

    activeObservers.forEach((observer, eventName) => {
      if (!validate(observer.tag, observer.lastRevision)) {
        let sendObserver = () => {

let ret;

    try {
      beginPropertyChanges();
      ret = this._set(obj, keyName, value);

      finishLazyChains(obj, keyName, ret);

      let propertyTag = tagForProperty(obj, keyName) as UpdatableTag;

      if (this._dependentKeys !== undefined) {
        update(propertyTag, combine(getChainTagsForKeys(obj, this._dependentKeys)));
      }

      setLastRevisionFor(obj, keyName, tagValue(propertyTag));
    } finally {
      endPropertyChanges();
    }

    return ret;
  }