{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898071,-0.439851,0.000000,0.000000,0.284336,-0.580545,0.762968,0.000000,-0.334648,0.683271,0.648961,0.000000,-2137447.667782,4364155.119009,4117262.707527,1],    "boundingVolume": {    "region": [2.026163,0.706107,2.026296,0.706330,0.000000,26.925476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1821039.b3dm"}}}