function GltfBuilder() {
  this.gltf = {
    asset: {
      generator: "cesium-tests",
      version: "2.0",
    },
    extensionsUsed: [],
    accessors: [],
    buffers: [],
    bufferViews: [],
    materials: [],
    meshes: [],
    nodes: [
      {
        mesh: 0,
      },
    ],
    scenes: [
      {
        nodes: [0],
      },
    ],
    scene: 0,
  };

  this.bufferBuilders = [];
}
A fluent interface for programmatically building a glTF.
@alias GltfBuilder
@constructor
@private