{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951980,-0.306160,0.000000,0.000000,0.114805,-0.356977,0.927031,0.000000,-0.283550,0.881677,0.377153,0.000000,-1809385.254100,5626138.443575,2390566.434481,1],    "boundingVolume": {    "region": [1.881866,0.386669,1.882040,0.386771,0.000000,5.913429]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/20_51657.b3dm"}}}