getImage(pixelRatio) {
    return this.iconImage_.getImage(pixelRatio);
  }
Get the image icon.
@param {number} pixelRatio Pixel ratio.
@return {HTMLImageElement|HTMLCanvasElement|ImageBitmap} Image or Canvas element. If the Icon
style was configured with `src` or with a not let loaded `img`, an `ImageBitmap` will be returned.
@api
@override