{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.893966,-0.448134,0.000000,0.000000,0.288770,-0.576057,0.764702,0.000000,-0.341731,0.681707,0.646913,0.000000,-2182667.692632,4354121.613576,4104228.740115,1],    "boundingVolume": {    "region": [2.035391,0.703447,2.035556,0.703610,0.000000,51.820974]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_1991701.b3dm"}}}