{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950875,-0.309576,0.000000,0.000000,0.172921,-0.531133,0.829455,0.000000,-0.256240,0.787049,0.561155,0.000000,-1636056.958289,5025205.551395,3558917.899762,1],    "boundingVolume": {    "region": [1.885471,0.595671,1.885617,0.595891,0.000000,8.789350]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1421879.b3dm"}}}