{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949045,-0.315139,0.000000,0.000000,0.175694,-0.529105,0.830168,0.000000,-0.261071,0.786216,0.560095,0.000000,-1666895.065282,5019869.451309,3552177.415896,1],    "boundingVolume": {    "region": [1.891353,0.594405,1.891447,0.594595,0.000000,8.615997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/25_1461973.b3dm"}}}