javascript - 編集したツリーをjsonオブジェクトとして元の形式で保存

Question

let data = {
"name": "root",
"children": [{
    "name": "analytics",
    "children": [{
        "name": "cluster",
        "children": [{
            "name": "AgglomerativeCluster",
            "size": 3938
        }]
    }, {
        "name": "graph",
        "children": [{
            "name": "BetweennessCentrality",
            "size": 3534
        }]
    }, {
        "name": "optimization",
        "children": [{
            "name": "AspectRatioBanker",
            "size": 7074
        }]
    }]
}]
};

let child1 = {
"name": "flex",
"children": [{
    "name": "FlareVis",
    "size": 4116
}]
};

let tree = new TreeModel();
let root = tree.parse(data);
//# Add a child
let tempChild1 = tree.parse(child1);
//# Add a child at a given index
root.addChildAtIndex(tempChild1, 0);
console.log(root);

このライブラリを使用: http://jnuno.com/tree-model-js/ツリー操作用。では、追加または削除後にライブラリからデータを元の形式で戻すにはどうすればよいでしょうか。

After the above operation, how can I get back this modified object from the library?
   data = {
"name": "root",
"children": [{
    "name": "analytics",
    "children": [{
        "name": "cluster",
        "children": [{
            "name": "AgglomerativeCluster",
            "size": 3938
        }]
    }, {
        "name": "graph",
        "children": [{
            "name": "BetweennessCentrality",
            "size": 3534
        }]
    }, {
        "name": "optimization",
        "children": [{
            "name": "AspectRatioBanker",
            "size": 7074
        }]
    }]
}, {
    "name": "flex",
    "children": [{
        "name": "FlareVis",
        "size": 4116
    }]
}]
}

ライブラリがこれを行う方法はありますか、または元の形式である目的の形式に変換する効率的な方法はありますか。