{
    "IS-MASTER-DOWN-BY-ADDR": {
        "summary": "Check if a master is down",
        "complexity": "O(1)",
        "group": "sentinel",
        "since": "2.8.4",
        "arity": 6,
        "container": "SENTINEL",
        "function": "sentinelCommand",
        "command_flags": [
            "ADMIN",
            "SENTINEL",
            "ONLY_SENTINEL"
        ],
        "arguments": [
            {
                "name": "ip",
                "type": "string"
            },
            {
                "name": "port",
                "type": "integer"
            },
            {
                "name": "current-epoch",
                "type": "integer"
            },
            {
                "name": "runid",
                "type": "string"
            }
        ]
    }
}