{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949654,-0.313300,0.000000,0.000000,0.114422,-0.346828,0.930923,0.000000,-0.291396,0.883259,0.367345,0.000000,-1859401.487575,5636092.418280,2328343.595809,1],    "boundingVolume": {    "region": [1.889378,0.376028,1.889547,0.376278,0.000000,8.814951]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/4_28720.b3dm"}}}