{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950694,-0.310130,0.000000,0.000000,0.173148,-0.530780,0.829634,0.000000,-0.256754,0.787071,0.560890,0.000000,-1639339.676731,5025338.785249,3557230.142000,1],    "boundingVolume": {    "region": [1.886069,0.595403,1.886184,0.595517,0.000000,8.789628]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1451317.b3dm"}}}