{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949089,-0.315008,0.000000,0.000000,0.116088,-0.349764,0.929618,0.000000,-0.292568,0.881481,0.370669,0.000000,-1866898.946515,5624792.428224,2349431.672314,1],    "boundingVolume": {    "region": [1.891207,0.379672,1.891315,0.379787,0.000000,65.249220]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/19_75691.b3dm"}}}