延迟加载的后处理，将名称映射到标题和键

Question

后处理的结果适用于以下情况：

return o && { title: o.combndName, key: o.parentSqn, folder: true , lazy: true};

但是，子元素的数据集本身没有标题和键，还需要映射到这些名称。

如何为延迟加载的子节点创建后处理？

function getTreeData() {
    $.getScript('//cdn.jsdelivr.net/npm/jquery.fancytree@2.27/dist/jquery.fancytree-all-deps.min.js', function () {
        $("#tree").fancytree({
            source: 
            {
                url: "/api/treetoplevel",
                data : {}
            },
            postProcess: function (event, data) { // activate lazy loading. 
                data.result = $.map(data.response, function (o) {
                    return o && { title: o.combndName, key: o.parentSqn, folder: true , lazy: true};//transform to tree output. TODO: play with columns after.  
                });
            },
            activate: function(event, data){
                var node = data.node;
                alert(node.key)
            },
            lazyLoad: function(event, data) {
                var node = data.node;
                data.result = { 
                  url: "/api/tree/" + node.key.toString(),
                  //url : "parent.json",
                  data: { mode: "children", parent: node.key },
                  cache: false
                };
             } 
          });
    });
};