{
    "catalog": [
        {
            "name": "Cesium Ion",
            "type": "group",
            "items": [
                {
                    "name": "PAMap Terrain",
                    "type": "cesium-terrain",
                    "ionAssetId": 3957
                },
                {
                    "name": "Earth at Night",
                    "type": "ion-imagery",
                    "ionAssetId": 3812
                }
            ]
        }
    ]
}