{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896742,-0.442553,0.000000,0.000000,0.286882,-0.581308,0.761432,0.000000,-0.336021,0.680877,0.650766,0.000000,-2146230.661640,4348893.732534,4128748.427939,1],    "boundingVolume": {    "region": [2.029191,0.708555,2.029289,0.708632,0.000000,10.914155]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_1791090.b3dm"}}}