{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950334,-0.311231,0.000000,0.000000,0.172964,-0.528140,0.831355,0.000000,-0.258205,0.788421,0.558322,0.000000,-1648588.252039,5033909.109517,3540910.520488,1],    "boundingVolume": {    "region": [1.887199,0.592262,1.887370,0.592462,0.000000,8.360055]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/7_1321438.b3dm"}}}