{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949137,-0.314864,0.000000,0.000000,0.115991,-0.349646,0.929674,0.000000,-0.292453,0.881579,0.370526,0.000000,-1866161.813590,5625417.471837,2348526.713858,1],    "boundingVolume": {    "region": [1.891056,0.379518,1.891164,0.379633,0.000000,52.732610]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/18_7563.b3dm"}}}