{
    "feature": "terralith:skylands/extend_down",
    "placement": [
        {
            "type": "minecraft:count",
            "count": 128
        },
        {
            "type": "minecraft:in_square"
        },
        {
            "type": "minecraft:random_offset",
            "xz_spread": {
                "type": "minecraft:uniform",
                "min_inclusive": -6,
                "max_inclusive": 6
            },
            "y_spread": 0
        },
        {
            "type": "minecraft:height_range",
            "height": {
                "absolute": 150
            }
        },
        {
            "type": "minecraft:environment_scan",
            "allowed_search_condition": {
                "type": "minecraft:matching_blocks",
                "blocks": [
                    "minecraft:air"
                ]
            },
            "direction_of_search": "up",
            "max_steps": 32,
            "target_condition": {
                "type": "minecraft:solid"
            }
        },
        {
            "type": "minecraft:biome"
        }
    ]
}