{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949210,-0.314644,0.000000,0.000000,0.115240,-0.347652,0.930515,0.000000,-0.292515,0.882454,0.368389,0.000000,-1866550.844247,5630968.839781,2334965.799706,1],    "boundingVolume": {    "region": [1.890815,0.377227,1.890940,0.377324,0.000000,62.199424]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/6_23212.b3dm"}}}