{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950343,-0.311203,0.000000,0.000000,0.173935,-0.531158,0.829227,0.000000,-0.257515,0.786391,0.561493,0.000000,-1644200.699756,5021013.227765,3561066.824829,1],    "boundingVolume": {    "region": [1.887179,0.596097,1.887331,0.596282,0.000000,8.819076]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_1432067.b3dm"}}}