{
  "feature": {
    "type": "minecraft:lake",
    "config": {
      "fluid": {
        "type": "minecraft:simple_state_provider",
        "state": {
          "Name": "minecraft:water"
        }
      },
      "barrier": {
        "type": "minecraft:simple_state_provider",
        "state": {
          "Name": "minecraft:grass_block"
        }
      }
    }
  },
  "placement": [
    {
      "type": "minecraft:rarity_filter",
      "chance": 5
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:heightmap",
      "heightmap": "WORLD_SURFACE_WG"
    },
    {
      "type": "minecraft:biome"
    }
  ]
}
