I'm no programmer, but I can't figure out why this don't work

I am trying to add a large photo gallery underneath my product description. I’m not sure if this get feature is the proper way or if I need to import wix stores backend and direct it that way. Here is my shot, and again no errors, but it does not do anything.

// Velo API Reference: Introduction - Velo API Reference - Wix.com
import wixStores from ‘wix-stores’ ;

//import products from wix-stores
$w . onReady ( function () {

$w ( ‘#HoodBillyMall’ ). getProduct ()
. then (( products ) => {
let productPageGallery = products . mediaItems
//This should send product pages media items to a larger pro gallery
})
. catch (( error ) => {
console . error ( error );
});

Any help is appreciated, & thanks in advance. ~HoodBilly~

I am working at this. I’ve looked into other api’s as I don’t think you can access the mediaItems from wix-stores, or maybe I need wix-data but I thought that was always in there. So I looked deeper and came across this:

From my perspective what this is saying is Main Media can connect to data, but Media Items can not. Although this confuses me. I am assuming this means that the data (pictures) can not be connected dynamically to another gallery? Please help me. Thank you. ~HoodBilly~

Read this one, maybe it will help you, to work on a PRODUCT-PAGE…
https://community.wix.com/velo/forum/coding-with-velo/image-is-not-fetching-from-the-collection

About working with GALLARIES…
https://community.wix.com/velo/forum/coding-with-velo/upload-image-and-preview-in-gallery