{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951221,-0.308510,0.000000,0.000000,0.115667,-0.356633,0.927057,0.000000,-0.285735,0.880999,0.377090,0.000000,-1823325.971311,5621807.482398,2390165.810750,1],    "boundingVolume": {    "region": [1.884341,0.386600,1.884505,0.386703,0.000000,50.877537]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/13_18890.b3dm"}}}