function TerrainProviderBuilder(options) {
  this.ellipsoid = options.ellipsoid ?? Ellipsoid.default;

  this.credit = undefined;
  this.tilingScheme = undefined;
  this.height = undefined;
  this.width = undefined;
  this.encoding = undefined;
  this.lodCount = undefined;
  this.hasAvailability = false;
  this.tilesAvailable = undefined;
  this.tilesAvailabilityLoaded = undefined;
  this.levelZeroMaximumGeometricError = undefined;
  this.terrainDataStructure = undefined;
}
Used to track creation details while fetching initial metadata

@constructor
@private

@param {ArcGISTiledElevationTerrainProvider.ConstructorOptions} [options] An object describing initialization options.