{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951867,-0.306511,0.000000,0.000000,0.112596,-0.349665,0.930084,0.000000,-0.284821,0.884510,0.369485,0.000000,-1817460.872528,5644104.241688,2341920.470485,1],    "boundingVolume": {    "region": [1.882240,0.378394,1.882404,0.378515,0.000000,27.454553]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/11_45978.b3dm"}}}