如何通过代码填充嵌套的树结构到obj中？

def fill_tree(obj, tree):
    # 遍历树结构
    for node in tree:
        # 创建新节点
        new_node = {}
        new_node['value'] = node['value']
        new_node['children'] = []
        
        # 递归填充子节点
        if 'children' in node:
            fill_tree(new_node['children'], node['children'])
        
        # 将节点添加到父节点的children列表中
        obj.append(new_node)