{
    "variants": {
        "shape=north_south": { "model": "block/rail" },
        "shape=east_west": { "model": "block/rail", "y": 90 },
        "shape=ascending_east": { "model": "block/rail_raised_ne", "y": 90 },
        "shape=ascending_west": { "model": "block/rail_raised_sw", "y": 90 },
        "shape=ascending_north": { "model": "block/rail_raised_ne" },
        "shape=ascending_south": { "model": "block/rail_raised_sw" },
        "shape=south_east": { "model": "block/rail_corner" },
        "shape=south_west": { "model": "block/rail_corner", "y": 90 },
        "shape=north_west": { "model": "block/rail_corner", "y": 180 },
        "shape=north_east": { "model": "block/rail_corner", "y": 270 }
    }
}