Closure function boilerplate

closure.js

/**
 * @module namespace/Closure
 * @requires module:namespace/Model
 * @lends namespace
 */
(function (window) {
  'use strict';

  /**
   * @namespace
   */
  var namespace = window.namespace;

  /**
   * @class
   * @memberOf namespace
   * @constructor
   * @description Closure constructor
   * @param {namespace.Model} model Model instance
   */
  function Closure(model) {
    /**
     * @description Model instance
     * @private
     * @type {namespace.Model}
     */
    this._model = model;
  }

  Closure.prototype = /** @lends namespace.Closure.prototype */ {
    constructor: Closure,
    /**
     * @description Example method
     * @public
     * @constructs
     * @param [param] string
     * @returns {boolean}
     */
    doSomething: function (param) {
      return param !== undefined;
    }
  };

  window.namespace = window.namespace || {};
  window.namespace.Closure = Closure;
})(window);