{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857756,-0.514058,0.000000,0.000000,0.263004,-0.438847,0.859210,0.000000,-0.440904,0.735691,0.514162,0.000000,-2814636.567591,4696497.936798,3260325.251331,1],    "boundingVolume": {    "region": [2.110623,0.539967,2.110787,0.540092,0.000000,25.209233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/4_344622.b3dm"}}}