{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949227,-0.314592,0.000000,0.000000,0.175872,-0.530664,0.829135,0.000000,-0.260290,0.785379,0.561631,0.000000,-1661920.696126,5014551.804236,3561939.724897,1],    "boundingVolume": {    "region": [1.890755,0.596302,1.890892,0.596409,0.000000,6.353858]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/13_1416635.b3dm"}}}