{
  "feature": "better_snowy_biomes:smooth_snow/layer_1",
  "placement": [    
    {
    "type": "minecraft:count",
    "count": 100
  },
  {
    "type": "minecraft:count",
    "count": 20
  },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:heightmap",
      "heightmap": "MOTION_BLOCKING_NO_LEAVES"
    },
    {
      "type": "minecraft:block_predicate_filter",
      "predicate": {
        "type": "minecraft:all_of",
        "predicates": [
          {
            "type": "minecraft:matching_blocks",
            "blocks": [
              "minecraft:air",
              "snow"
            ]
          },
          {
            "type": "minecraft:matching_blocks",
            "blocks": [
              "snow_block",
              "minecraft:sand"
            ],
            "offset": [
              0,
              -1,
              0
            ]
          },
          {
            "type":"minecraft:not",
               "predicate": 
               {
                "type": "minecraft:matching_blocks",
                "blocks": [
                  "minecraft:grass_block",
                  "grass_block"
                ],
                "offset": [
                  0,
                  -1,
                  0
                ]
               }
              
            },
          {
            "type": "minecraft:any_of",
            "predicates": [
              {
                "type": "minecraft:matching_blocks",
                "blocks": [
                  "snow_block",
                  "minecraft:sand"
                ],
                "offset": [
                  1,
                  0,
                  0
                ]
              },
              {
                "type": "minecraft:matching_blocks",
                "blocks": [
                  "snow_block",
                  "minecraft:sand"
                ],
                "offset": [
                  -1,
                  0,
                  0
                ]
              },
              {
                "type": "minecraft:matching_blocks",
                "blocks": [
                  "snow_block",
                  "minecraft:sand"
                ],
                "offset": [
                  0,
                  0,
                  1
                ]
              },
              {
                "type": "minecraft:matching_blocks",
                "blocks": [
                  "snow_block",
                  "minecraft:sand"
                ],
                "offset": [
                  0,
                  0,
                  -1
                ]
              }
            ]
          }
      ]
    }
    },
    {
      "type": "minecraft:biome"
    }
  ]
}