{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949294,-0.314391,0.000000,0.000000,0.175761,-0.530703,0.829134,0.000000,-0.260123,0.785433,0.561633,0.000000,-1660855.232857,5014895.969572,3561952.065755,1],    "boundingVolume": {    "region": [1.890562,0.596317,1.890661,0.596399,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416708.b3dm"}}}