{
  "$ref": "#/$defs/SchemaRoot",
  "$defs": {
    "SchemaRoot": {
      "properties": {
        "child": {
          "properties": {
            "node": {
              "$ref": "#/$defs/SchemaRoot"
            }
          },
          "type": "object"
        }
      },
      "type": "object"
    }
  }
}