{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949135,-0.314869,0.000000,0.000000,0.116027,-0.349750,0.929630,0.000000,-0.292444,0.881536,0.370637,0.000000,-1866103.076893,5625142.137462,2349228.045107,1],    "boundingVolume": {    "region": [1.891061,0.379637,1.891169,0.379752,0.000000,59.537360]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/19_75360.b3dm"}}}