{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898075,-0.439842,0.000000,0.000000,0.284326,-0.580541,0.762975,0.000000,-0.334644,0.683281,0.648954,0.000000,-2137418.772894,4364215.053312,4117214.503875,1],    "boundingVolume": {    "region": [2.026152,0.706097,2.026285,0.706320,0.000000,26.925476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820943.b3dm"}}}