{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948589,-0.316510,0.000000,0.000000,0.116771,-0.349966,0.929456,0.000000,-0.293911,0.880861,0.371079,0.000000,-1875471.855868,5620846.035517,2352029.669041,1],    "boundingVolume": {    "region": [1.892760,0.380065,1.892928,0.380276,0.000000,10.775001]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_3751.b3dm"}}}