{
    "multipart": [
        {   "when": { "persistent": "true" },
            "apply": [
                { "model": "block/birch_leaves" },
                { "model": "block/birch_leaves", "y": 90 },
                { "model": "block/birch_leaves", "y": 180 },
                { "model": "block/birch_leaves", "y": 270 }
            ]
        },
        {   "when": { "persistent": "false","distance": "7|6|5|4" },
            "apply": [
                { "model": "block/birch_leaves" },
                { "model": "block/birch_leaves", "y": 90 },
                { "model": "block/birch_leaves", "y": 180 },
                { "model": "block/birch_leaves", "y": 270 }
            ]
        },
        {   "when": { "persistent": "false","distance": "3|2" },
            "apply": [
                { "model": "block/birch_leaves" },
                { "model": "block/birch_leaves", "y": 90 },
                { "model": "block/birch_leaves", "y": 180 },
                { "model": "block/birch_leaves", "y": 270 },
                { "model": "block/birch_leaves2" },
                { "model": "block/birch_leaves2", "y": 90 },
                { "model": "block/birch_leaves2", "y": 180 },
                { "model": "block/birch_leaves2", "y": 270 }
            ]
        },
        {   "when": { "persistent": "false","distance": "1" },
            "apply": [
                { "model": "block/birch_leaves2" },
                { "model": "block/birch_leaves2", "y": 90 },
                { "model": "block/birch_leaves2", "y": 180 },
                { "model": "block/birch_leaves2", "y": 270 }
            ]
        }
    ]
}