如何改造jquery 插件符合amd 规范示例

// UMD dance - https://github.com/umdjs/umd !function(root, factory) {
if (typeof define === 'function' && define.amd) {
define(['jquery'], factory);
} else {
factory(root.jQuery);
}
}(this, function($) {
'use strict';

// Default options
var defaults = {

};

// Constructor, initialise everything you need here
var Plugin = function(element, options) {
this.element = element;
this.options = options;
};

// Plugin methods and shared properties
Plugin.prototype = {
// Reset constructor - http://goo.gl/EcWdiy constructor: Plugin,

someMethod: function() {

}
}

// Create the jQuery plugin
$.fn.plugin = function(options) {
// Do a deep copy of the options - http://goo.gl/gOSSrg options = $.extend(true, {}, defaults, options);

return this.each(function() {
var $this = $(this);
// Create a new instance for each element in the matched jQuery set
// Also save the instance so it can be accessed later to use methods/properties etc
// e.g.
//    var instance = $('.element').data('plugin');
//    instance.someMethod();
$this.data('plugin', new Plugin($this, options));
});
};

// Expose defaults and Constructor (allowing overriding of prototype methods for example)
$.fn.plugin.defaults = defaults;
$.fn.plugin.Plugin = Plugin;
});

// 用例，jquery.plugin 是上面插件的标示符
require(['jquery', 'jquery.plugin'], function($) {
$('.test li').plugin({
test: 'option1',
test2: 'option2'
});
});