{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949539,-0.313648,0.000000,0.000000,0.175322,-0.530770,0.829184,0.000000,-0.259524,0.785684,0.561558,0.000000,-1657031.488816,5016497.928704,3561480.314875,1],    "boundingVolume": {    "region": [1.889780,0.596227,1.889879,0.596309,0.000000,8.315556]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/12_1444292.b3dm"}}}