def METHOD_NAME(self):
    self.topo_tree = {
        "default": 0,
        "bk_obj_name": "业务",
        "bk_obj_id": "biz",
        "child": [
            {
                "default": 1,
                "bk_obj_name": "集群",
                "bk_obj_id": "set",
                "child": [
                    {
                        "default": 1,
                        "bk_obj_id": "module",
                        "bk_inst_id": 3,
                        "bk_obj_name": "模块",
                        "bk_inst_name": "空闲机",
                    },
                    {
                        "default": 1,
                        "bk_obj_id": "module",
                        "bk_inst_id": 4,
                        "bk_obj_name": "模块",
                        "bk_inst_name": "故障机",
                    },
                ],
                "bk_inst_id": 2,
                "bk_inst_name": "空闲机池",
            },
            {
                "default": 0,
                "bk_obj_name": "集群",
                "bk_obj_id": "set",
                "child": [
                    {
                        "default": 0,
                        "bk_obj_name": "模块",
                        "bk_obj_id": "module",
                        "bk_inst_id": 5,
                        "bk_inst_name": "test1",
                    },
                    {
                        "default": 0,
                        "bk_obj_name": "模块",
                        "bk_obj_id": "module",
                        "bk_inst_id": 6,
                        "bk_inst_name": "test2",
                    },
                    {
                        "default": 0,
                        "bk_obj_name": "模块",
                        "bk_obj_id": "module",
                        "bk_inst_id": 7,
                        "bk_inst_name": "test3",
                    },
                ],
                "bk_inst_id": 3,
                "bk_inst_name": "set2",
            },
            {
                "default": 0,
                "bk_obj_name": "集群",
                "bk_obj_id": "set",
                "child": [
                    {
                        "default": 0,
                        "bk_obj_name": "模块",
                        "bk_obj_id": "module",
                        "bk_inst_id": 8,
                        "bk_inst_name": "test1",
                    },
                    {
                        "default": 0,
                        "bk_obj_name": "模块",
                        "bk_obj_id": "module",
                        "bk_inst_id": 9,
                        "bk_inst_name": "test2",
                    },
                ],
                "bk_inst_id": 4,
                "bk_inst_name": "set3",
            },
        ],
        "bk_inst_id": 2,
        "bk_inst_name": "蓝鲸",
    }