{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949079,-0.315038,0.000000,0.000000,0.116131,-0.349854,0.929578,0.000000,-0.292584,0.881434,0.370768,0.000000,-1866999.049562,5624494.763796,2350060.426225,1],    "boundingVolume": {    "region": [1.891239,0.379778,1.891347,0.379894,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76901.b3dm"}}}