{
  "variants": {
    "powered=false,type=cross_signal": {
      "model": "create:block/track_signal/block_cross_signal"
    },
    "powered=false,type=entry_signal": {
      "model": "create:block/track_signal/block_entry_signal"
    },
    "powered=true,type=cross_signal": {
      "model": "create:block/track_signal/block_cross_signal"
    },
    "powered=true,type=entry_signal": {
      "model": "create:block/track_signal/block_entry_signal"
    }
  }
}