{
  "feature": {
    "config": {
      "probability": 0.7
    },
    "type": "minecraft:seagrass"
  },
  "placement": [
    {
      "count": 4,
      "type": "minecraft:count"
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "heightmap": "OCEAN_FLOOR",
      "type": "minecraft:heightmap"
    },
    {
      "type": "minecraft:biome"
    },
    {
      "count": 8,
      "type": "minecraft:count"
    }
  ]
}