{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899336,-0.437258,0.000000,0.000000,0.282959,-0.581979,0.762388,0.000000,-0.332420,0.683709,0.649645,0.000000,-2123222.680382,4366964.150077,4121612.870337,1],    "boundingVolume": {    "region": [2.023257,0.707063,2.023431,0.707172,0.000000,6.551217]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800696.b3dm"}}}