addChoices(values, labels) {
		const dl = this.node.lastElementChild.firstElementChild;
		dom.callClassMethod(dl, 'addChoices', values, labels);
	}
Add new suggested choices to the dynamic list.

This function adds further choices to an existing dynamic list,
ignoring choice values which are already present.

@instance
@memberof LuCI.ui.DynamicList
@param {string[]} values
The choice values to add to the dynamic lists suggestion dropdown.

@param {Object<string, *>} labels
The choice label values to use when adding suggested choices. If no
label is found for a particular choice value, the value itself is used
as label text. Choice labels may be any valid value accepted by
{@link LuCI.dom#content}.