{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950732,-0.310014,0.000000,0.000000,0.173430,-0.531866,0.828879,0.000000,-0.256422,0.786380,0.562010,0.000000,-1637224.592874,5020948.402243,3564348.731128,1],    "boundingVolume": {    "region": [1.885921,0.596729,1.886086,0.596898,0.000000,8.777975]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1387625.b3dm"}}}