{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950482,-0.310781,0.000000,0.000000,0.173452,-0.530480,0.829762,0.000000,-0.257333,0.787018,0.560699,0.000000,-1643033.234337,5024997.074989,3556016.749438,1],    "boundingVolume": {    "region": [1.886761,0.595171,1.886861,0.595288,0.000000,8.787647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1450274.b3dm"}}}