{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.893969,-0.448129,0.000000,0.000000,0.288748,-0.576022,0.764737,0.000000,-0.341743,0.681740,0.646871,0.000000,-2182740.527575,4354334.380757,4103966.039777,1],    "boundingVolume": {    "region": [2.035385,0.703393,2.035550,0.703556,0.000000,51.820974]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_1870021.b3dm"}}}