{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948843,-0.315748,0.000000,0.000000,0.176392,-0.530068,0.829406,0.000000,-0.261332,0.785320,0.561229,0.000000,-1668573.604883,5014169.350174,3559384.119246,1],    "boundingVolume": {    "region": [1.891973,0.595816,1.892110,0.595923,0.000000,8.775112]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/8_1147676.b3dm"}}}