{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950311,-0.311303,0.000000,0.000000,0.173785,-0.530511,0.829673,0.000000,-0.257737,0.786791,0.560832,0.000000,-1645614.102126,5023551.046066,3556860.637678,1],    "boundingVolume": {    "region": [1.887310,0.595331,1.887410,0.595448,0.000000,7.950933]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1345194.b3dm"}}}