{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949891,-0.312582,0.000000,0.000000,0.174697,-0.530878,0.829247,0.000000,-0.258662,0.786035,0.561465,0.000000,-1651523.830178,5018739.699676,3560884.207044,1],    "boundingVolume": {    "region": [1.888621,0.596052,1.888792,0.596257,0.000000,21.806790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1435025.b3dm"}}}