{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.889443,-0.457047,0.000000,0.000000,0.287125,-0.558765,0.778037,0.000000,-0.354654,0.690180,0.630772,0.000000,-2265050.052189,4407934.102246,4001547.376922,1],    "boundingVolume": {    "region": [2.045418,0.682510,2.045518,0.682584,0.000000,52.289400]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_520978.b3dm"}}}