{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950525,-0.310649,0.000000,0.000000,0.173890,-0.532069,0.828652,0.000000,-0.256876,0.785991,0.562346,0.000000,-1640129.537225,5018472.021558,3566485.675672,1],    "boundingVolume": {    "region": [1.886623,0.597171,1.886721,0.597269,0.000000,13.895815]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1384849.b3dm"}}}