{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896790,-0.442457,0.000000,0.000000,0.287567,-0.582853,0.759992,0.000000,-0.335307,0.679614,0.652452,0.000000,-2141687.130735,4340863.080310,4139472.514447,1],    "boundingVolume": {    "region": [2.029043,0.710763,2.029222,0.710868,0.000000,11.821249]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/20_1781545.b3dm"}}}