{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943874,-0.330305,0.000000,0.000000,0.183824,-0.525292,0.830829,0.000000,-0.273854,0.782561,0.559108,0.000000,-1748507.345685,4996513.659609,3545908.355920,1],    "boundingVolume": {    "region": [1.907368,0.593220,1.907477,0.593400,0.000000,7.589218]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1246245.b3dm"}}}