{ "feature": "minecraft:meadow_trees", "placement": [ { "type": "minecraft:rarity_filter", "chance": 100 }, { "type": "minecraft:in_square" }, { "type": "minecraft:surface_water_depth_filter", "max_water_depth": 0 }, { "type": "minecraft:heightmap", "heightmap": "OCEAN_FLOOR" }, { "type": "minecraft:biome" } ] }