{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949030,-0.315185,0.000000,0.000000,0.175965,-0.529835,0.829645,0.000000,-0.260943,0.785704,0.560873,0.000000,-1666083.862672,5016613.283670,3557121.267299,1],    "boundingVolume": {    "region": [1.891380,0.595386,1.891517,0.595493,0.000000,8.585155]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_1072068.b3dm"}}}