{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.893995,-0.448076,0.000000,0.000000,0.288740,-0.576090,0.764689,0.000000,-0.341681,0.681717,0.646928,0.000000,-2182348.929923,4354188.669742,4104326.449538,1],    "boundingVolume": {    "region": [2.035326,0.703468,2.035492,0.703630,0.000000,51.820974]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_1991731.b3dm"}}}