{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950704,-0.310100,0.000000,0.000000,0.173226,-0.531078,0.829427,0.000000,-0.256664,0.786881,0.561197,0.000000,-1638765.968989,5024132.743424,3559184.360824,1],    "boundingVolume": {    "region": [1.886036,0.595774,1.886152,0.595889,0.000000,8.784505]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1425232.b3dm"}}}