{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852949,-0.521994,0.000000,0.000000,0.269379,-0.440171,0.856554,0.000000,-0.446312,0.729285,0.518603,0.000000,-2849207.968931,4655670.977872,3288539.048343,1],    "boundingVolume": {    "region": [2.119937,0.545174,2.120029,0.545258,0.000000,78.392900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_4568.b3dm"}}}