{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950459,-0.310850,0.000000,0.000000,0.173534,-0.530599,0.829669,0.000000,-0.257361,0.786910,0.560837,0.000000,-1643213.021749,5024310.778897,3556897.367466,1],    "boundingVolume": {    "region": [1.886834,0.595338,1.886933,0.595455,0.000000,8.818353]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1450857.b3dm"}}}