{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949110,-0.314946,0.000000,0.000000,0.115938,-0.349386,0.929778,0.000000,-0.292562,0.881654,0.370262,0.000000,-1866858.184055,5625892.334916,2346846.500868,1],    "boundingVolume": {    "region": [1.891142,0.379233,1.891250,0.379348,0.000000,66.982994]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/15_6752.b3dm"}}}