module.exports = new Class
({
	/**
	 * Gets a value from the set.
	 *
	 * @param {String} field The field name
	 * @return {any} The field value
	 */
	get: function (field) {}

	/**
	 * Sets a value on the set.
	 *
	 * @param {String} field The field name
	 * @param {any} value The new field value
	 */
	,set: function (field, value) {}

	/**
	 * Emits the 'change' signal on the set.
	 */
	,changed: function ()
	{
		this.signalEmit ('change');
	}
});