{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858266,-0.513205,0.000000,0.000000,0.262849,-0.439580,0.858883,0.000000,-0.440003,0.735846,0.514712,0.000000,-2808891.777506,4697493.157220,3263820.454677,1],    "boundingVolume": {    "region": [2.109629,0.540609,2.109793,0.540734,0.000000,15.085900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_418497.b3dm"}}}