{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950594,-0.310436,0.000000,0.000000,0.173625,-0.531662,0.828969,0.000000,-0.256799,0.786351,0.561877,0.000000,-1639635.600011,5020764.810637,3563504.660531,1],    "boundingVolume": {    "region": [1.886400,0.596604,1.886497,0.596702,0.000000,8.620043]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1393969.b3dm"}}}