{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858233,-0.513261,0.000000,0.000000,0.262532,-0.438984,0.859285,0.000000,-0.440259,0.736165,0.514036,0.000000,-2810519.379531,4699519.512757,3259528.310498,1],    "boundingVolume": {    "region": [2.109694,0.539821,2.109859,0.539946,0.000000,83.499081]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/3_321745.b3dm"}}}