{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950586,-0.310461,0.000000,0.000000,0.173655,-0.531706,0.828934,0.000000,-0.256809,0.786312,0.561928,0.000000,-1639696.882219,5020513.493177,3563828.349007,1],    "boundingVolume": {    "region": [1.886425,0.596665,1.886523,0.596764,0.000000,11.035601]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1394858.b3dm"}}}