Javascript Node.JS使用Require（）向CreateContext（）添加访问节点模块

在我的应用程序中，我创建了上下文，然后运行incontext。我只需要在上下文中添加对某些节点模块的访问。我知道如何添加自己的Javascript方法，但在添加节点模块（如async和http）时会出错。我该怎么做

我正在使用沙盒模块来运行子进程

代码

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require

返回模块，因此如果不将其分配给某个对象，则该模块将不可用

var context = Script.createContext();
    context.myOwnFunctions = function() {
    //my own javascript
}
context.myNodeFunctions = function() {
    this.async = require('async');
    this.http = require('http');
    //Add some function that use the items I required above
}

var run = Script.runInContext('code to run', context);

var context = Script.createContext();
    context.myOwnFunctions = function() {
    //my own javascript
}
context.myNodeFunctions = function() {
    this.async = require('async');
    this.http = require('http');
    //Add some function that use the items I required above
}

var run = Script.runInContext('code to run', context);