{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949135,-0.314868,0.000000,0.000000,0.116069,-0.349877,0.929577,0.000000,-0.292426,0.881485,0.370771,0.000000,-1865989.045304,5624822.497195,2350078.084754,1],    "boundingVolume": {    "region": [1.891060,0.379781,1.891168,0.379897,0.000000,65.359440]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76932.b3dm"}}}