/** @externs */

/**
 * @param {(string|Object.<string, *>)} x
 * @param {*=} y
 * @param {*=} z
 * @return {(!jQuery|*)}
 */
jQuery.prototype.draggable = function(x, y, z) {};

/**
 * @param {(string|Object.<string, *>)} x
 * @param {*=} y
 * @param {*=} z
 * @return {(!jQuery|*)}
 */
jQuery.prototype.droppable = function(x, y, z) {};