{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948987,-0.315314,0.000000,0.000000,0.176061,-0.529883,0.829594,0.000000,-0.261033,0.785620,0.560949,0.000000,-1666662.258741,5016075.419035,3557605.524992,1],    "boundingVolume": {    "region": [1.891516,0.595478,1.891653,0.595585,0.000000,8.815893]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_1071103.b3dm"}}}