{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950730,-0.310021,0.000000,0.000000,0.173540,-0.532190,0.828648,0.000000,-0.256355,0.786156,0.562353,0.000000,-1636802.773634,5019528.009197,3566527.671428,1],    "boundingVolume": {    "region": [1.885928,0.597144,1.886094,0.597313,0.000000,8.574145]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1325162.b3dm"}}}