{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950765,-0.309913,0.000000,0.000000,0.173349,-0.531810,0.828932,0.000000,-0.256355,0.786458,0.561931,0.000000,-1636796.199956,5021444.458207,3563849.998930,1],    "boundingVolume": {    "region": [1.885815,0.596634,1.885980,0.596803,0.000000,8.777975]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1387013.b3dm"}}}