{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897895,-0.440210,0.000000,0.000000,0.282601,-0.576420,0.766731,0.000000,-0.336586,0.686533,0.644502,0.000000,-2149782.442596,4384901.922970,4088890.357545,1],    "boundingVolume": {    "region": [2.026566,0.700337,2.026692,0.700406,0.000000,33.682253]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_852520.b3dm"}}}