{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943305,-0.331926,0.000000,0.000000,0.186065,-0.528780,0.828113,0.000000,-0.274290,0.779509,0.563144,0.000000,-1751321.502275,4977099.681403,3571556.275835,1],    "boundingVolume": {    "region": [1.909069,0.598136,1.909214,0.598234,0.000000,8.394376]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_1248818.b3dm"}}}