{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950849,-0.309656,0.000000,0.000000,0.116235,-0.356919,0.926875,0.000000,-0.286739,0.880480,0.377540,0.000000,-1829733.692290,5618501.943406,2393020.699028,1],    "boundingVolume": {    "region": [1.885568,0.387073,1.885687,0.387202,0.000000,8.824128]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/4_59753.b3dm"}}}