{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949446,-0.313929,0.000000,0.000000,0.175499,-0.530778,0.829141,0.000000,-0.259743,0.785567,0.561621,0.000000,-1658430.554680,5015750.600793,3561878.959863,1],    "boundingVolume": {    "region": [1.890076,0.596303,1.890174,0.596385,0.000000,13.162316]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1408911.b3dm"}}}