{
    "variants": {
        "facing=north": { "model": "block/ladder" },
        "facing=east":  { "model": "block/ladder", "y": 90 },
        "facing=south": { "model": "block/ladder", "y": 180 },
        "facing=west":  { "model": "block/ladder", "y": 270 }
    }
}
