{
    "items": [
        {
            "env": "tiyan1-5gzlnxws501f4e68",
            "service_name": "echo",
            "items": [
                {
                    "version_name": "echo-004",
                    "flow_ratio": 80
                },
                {
                    "version_name": "echo-007",
                    "flow_ratio": 20
                }
            ]
        }
    ]
}
