如何获取$ graphLookup输出将层次结构生成为嵌套数组？

Question

我希望从图查询聚合中输出未指定数量的嵌套数组。

我有数据收集：

 [
        { _id: 1, name: 'AA' },
        { _id: 2, name: 'BB', parent: 1, ancestors: [1] },
        { _id: 3, name: 'CC' },
        { _id: 4, name: 'DD', parent: 3, ancestors: [3] },
        { _id: 5, name: 'DD', parent: 4, ancestors: [3, 4] },
        { _id: 6, name: 'FF', parent: 5, ancestors: [3, 4, 5] }
        ...,
        ...,
        ... ]

如何以图表形式显示查找汇总以输出以生成未指定的层次结构，如下所示：

{
    "_id" : 3,
    "name" : "CC",
    "children" : [
        {
            "_id" : 4,
            "name" : "DD",
            "parent" : 3,
            "ancestors" : [
                3
            ],
          "children":[
             {
                  "_id" : 5,
                  "name" : "DD",
                  "parent" : 4,
                   "ancestors" : [
                     3,
                     4
                   ],
                 children:[
                   {
                     ...,
                     children:[...]
                    }
                 ]
                 },
           ]
        },  
    ]
}*

我希望有人能帮助我，谢谢。