Personality UI selectors not accessible via Rez.Styles

SO many bugs ! 

it is really hard to follow any example provided in the official SDK docs ! its really disappointing when even the examples dont even compile and you have to go through rabbit holes and then more rabbit holes, because nothing really works

The examples listed here:

Garmin/ConnectIQ/Sdks/connectiq-sdk-mac-6.4.0-2023-11-15-2e7aa9074/PersonalityLibrary.html#actionmenuhint

from the actual page

Example

menu.xml

<action-menu id="ActionMenu">
    <action-menu-item id="edit" label="@Strings.edit" />
    <action-menu-item id="dismiss" label="@Strings.dismiss" />
</action-menu>

InputDelegate.mc

    function onKey(evt as KeyEvent) as Boolean {
        if (Styles.input_system__action_menu has :button &&
            evt.getKey() == Styles.input_system__action_menu.button) {
            showActionMenu();
            return true;
        }
        return false;
    }

    function onTap(evt as ClickEvent) as Boolean {
        if (!(Styles.input_system__action_menu has :button) &&
            $.isInActionArea(evt.getCoordinates())) {
            showActionMenu();
            return true;
        }
        return false;
    }

    function showActionMenu() as Void{
        WatchUi.showActionMenu(new Rez.Menus.Menu(),
            new MyActionMenuDelegate());
    }

Cant even compile ! why ? 

1. Compilation error "Undefined symbol ':input_system__action_menu' detected.". And yes, when trying it out, i did import Rez.Styles module

How did the person writing this tutorial https://forums.garmin.com/developer/connect-iq/b/news-announcements/posts/adding-a-touch-of-personality-with-personality-ui
compile there code is beyond me 
"Let’s look at this function. The Personality UI selectors we used in the resource XML earlier are accessible in the Monkey C code space via the Rez.Styles module. In this case, we are checking to see if the system_input__action_menu selector has the button symbol, and we’re referencing it if it does."

How ??


2.

Toybox.WatchUi.showActionMenu expects input Toybox.WatchUi.ActionMenu and not Rez.Menus.Menu

Ref: https://developer.garmin.com/connect-iq/api-docs/Toybox/WatchUi.html#showActionMenu-instance_function