{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949512,-0.313732,0.000000,0.000000,0.175263,-0.530434,0.829411,0.000000,-0.259665,0.785878,0.561221,0.000000,-1657930.318321,5017732.989292,3559335.959665,1],    "boundingVolume": {    "region": [1.889868,0.595819,1.889967,0.595901,0.000000,7.480883]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1362183.b3dm"}}}