{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949807,-0.312836,0.000000,0.000000,0.114078,-0.346355,0.931141,0.000000,-0.291033,0.883611,0.366786,0.000000,-1857085.099639,5638328.479557,2324799.682856,1],    "boundingVolume": {    "region": [1.888890,0.375427,1.889058,0.375677,0.000000,16.911329]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/1_32155.b3dm"}}}