How to use fallback for player_head

[glad nexus]

I'm trying to implement custom model for player_head (not custom texture) using custom_model_data. However while doing so, all the playerheads are broken with missing model. How do i implement fallback in a way so the player heads will work as usual? If even possible. Minecraft 1.21.5 Vanilla

[steep turret]

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[glad nexus]

i found the solution

for anyone in the future

{
  "model": {
    "type": "minecraft:range_dispatch",
    "property": "minecraft:custom_model_data",
    "entries": [
      {
        "threshold": 9,
        "model": {
          "type": "minecraft:model",
          "model": "minecraft:item/spirit_skull"
        }
      }
    ],
    "fallback": {
      "type": "minecraft:special",
      "model": {
        "type": "minecraft:head",
        "kind": "player"
      },
      "base": "minecraft:item/template_skull"
    }
  }
}