{
    "leader.leader": [
        {
            "leader.leader": "value1",
            "leader.follower1": "val11",
            "leader.follower2": "val21"
        },
        {
            "leader.leader": "value2",
            "leader.follower1": "val11",
            "leader.follower2": "val21"
        }
    ],
    "calculate": "value1"
}