{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949075,-0.315049,0.000000,0.000000,0.116074,-0.349670,0.929655,0.000000,-0.292618,0.881503,0.370575,0.000000,-1867219.036352,5624935.648446,2348838.335963,1],    "boundingVolume": {    "region": [1.891251,0.379571,1.891359,0.379686,0.000000,52.365640]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/18_74888.b3dm"}}}