{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950830,-0.309712,0.000000,0.000000,0.173116,-0.531474,0.829196,0.000000,-0.256271,0.786764,0.561540,0.000000,-1636261.515108,5023395.790690,3561361.473651,1],    "boundingVolume": {    "region": [1.885614,0.596136,1.885760,0.596355,0.000000,8.774613]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/14_1338959.b3dm"}}}