{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949134,-0.314871,0.000000,0.000000,0.116082,-0.349912,0.929563,0.000000,-0.292424,0.881470,0.370808,0.000000,-1865978.479678,5624725.632898,2350316.692679,1],    "boundingVolume": {    "region": [1.891063,0.379822,1.891171,0.379937,0.000000,72.367680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_77529.b3dm"}}}