{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944274,-0.329160,0.000000,0.000000,0.183992,-0.527826,0.829185,0.000000,-0.272359,0.781329,0.561557,0.000000,-1738981.540351,4988689.196768,3561470.291662,1],    "boundingVolume": {    "region": [1.906153,0.596229,1.906267,0.596303,0.000000,8.815695]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_851685.b3dm"}}}