{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950385,-0.311076,0.000000,0.000000,0.173981,-0.531539,0.828974,0.000000,-0.257330,0.786183,0.561870,0.000000,-1643023.774544,5019689.618004,3563459.113431,1],    "boundingVolume": {    "region": [1.887072,0.596595,1.887170,0.596694,0.000000,8.795997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1393718.b3dm"}}}