code: function (displayName) {
              this.imageSize = 256;
  
              MercatorTiledImageLayer.call(this,
                  new Sector(-85.05, 85.05, -180, 180), new Location(85.05, 180), 23, "image/jpeg", displayName,
                  this.imageSize, this.imageSize);
  
              this.displayName = displayName;
  
              // TODO: Picking is enabled as a temporary measure for screen credit hyperlinks to work (see Layer.render)
              this.pickEnabled = true;
  
              this.detectBlankImages = true;
          }
docs: Constructs a base Bing layer. This constructor is meant to be called only by subclasses.
  @alias BingTiledImageLayer
  @constructor
  @augments MercatorTiledImageLayer
  @classdesc Provides an abstract base layer for Bing imagery. This class is not intended to be constructed
  independently but as a base layer for subclasses.
  See {@link BingAerialLayer}, {@link BingAerialWithLabelsLayer} and {@link BingRoadsLayer}.
  
  @param {String} displayName This layer's display name.