function Instances() {
  /**
   * The instance attributes, e.g. translation, rotation, scale, feature id, etc.
   *
   * @type {ModelComponents.Attribute[]}
   * @private
   */
  this.attributes = [];

  /**
   * The feature ID attributes associated with this set of instances.
   * Feature ID attribute types may be interleaved.
   *
   * @type {Array<ModelComponents.FeatureIdAttribute|ModelComponents.FeatureIdImplicitRange>}
   * @private
   */
  this.featureIds = [];

  /**
   * Whether the instancing transforms are applied in world space. For glTF models that
   * use EXT_mesh_gpu_instancing, the transform is applied in object space. For i3dm files,
   * the instance transform is in world space.
   *
   * @type {boolean}
   * @private
   */
  this.transformInWorldSpace = false;
}
Position and metadata information for instances of a node.

@alias ModelComponents.Instances
@constructor

@private