Possible solution to create a nested Gallery model with Ampersand.js

index.js

var Collection = require('ampersand-rest-collection');
var AmpersandModel = require('ampersand-model');
 

var Gallery = Collection.extend({
  model: function(attr) {
    return new Gallery();
  },
  isModel: function(model) {
    return model instanceof Gallery;
  }
});

var GalleryItem = AmpersandModel.extend({
  props: {
    name: 'string',
    picture: 'any'
  },
  collections: {
    gallery: Gallery
  }
});