{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950189,-0.311676,0.000000,0.000000,0.174244,-0.531207,0.829131,0.000000,-0.257876,0.786171,0.561636,0.000000,-1646505.305772,5019608.577585,3561976.005727,1],    "boundingVolume": {    "region": [1.887683,0.596258,1.887822,0.596467,0.000000,8.750392]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/3_1397426.b3dm"}}}