{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944272,-0.329167,0.000000,0.000000,0.183938,-0.527657,0.829304,0.000000,-0.272405,0.781440,0.561380,0.000000,-1739271.250502,4989395.749238,3560346.451424,1],    "boundingVolume": {    "region": [1.906160,0.596015,1.906275,0.596090,0.000000,8.797946]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/1_851273.b3dm"}}}