{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949064,-0.315083,0.000000,0.000000,0.175867,-0.529733,0.829731,0.000000,-0.260885,0.785815,0.560745,0.000000,-1665713.541028,5017316.147806,3556308.761917,1],    "boundingVolume": {    "region": [1.891271,0.595232,1.891409,0.595338,0.000000,8.820004]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1375063.b3dm"}}}