How to sort options in combo

I saw in datable has

view: "datatable",
$sort: { by: "value", dir: "asc"}

Ok I got it.

this.assigned_combo = this.form.elements.assigned;
this.assigned_optoins = new webix.DataCollection({
	url: "/api/test",
	scheme: {
		$sort: {
		by: "value",
		dir: "asc",
		as: "string"
		}
	}
});

this.assigned_combo.getList().clearAll();
this.assigned_combo.getList().parse(this.assigned_optoins);
{
	view: "multiselect",
	name: "status",
	options: {
		body: {
			scheme: {
				$sort: {
					by: "value",
					dir: "asc",
					as: "string"
				}
			},
			url: "api/test""
		}
	},
	placeholder: "Status",
	width: 200
}