{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949136,-0.314866,0.000000,0.000000,0.175317,-0.528478,0.830648,0.000000,-0.260996,0.786750,0.559380,0.000000,-1666412.765452,5023264.064091,3547632.585912,1],    "boundingVolume": {    "region": [1.891064,0.593542,1.891159,0.593732,0.000000,7.603587]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_1382282.b3dm"}}}