constructor() {
    super();

    /**
     * Animation speed.
     * @export {number|undefined}
     */
    this.framesPerSecond;

    /**
     * The maximum number of video frames to compute and export.
     * @export {number|undefined}
     */
    this.maxFrames;

    /**
     * The maximum number of pixels to compute and export per frame.
     * @export {string|undefined}
     */
    this.maxPixelsPerFrame;

    /**
     * The output file format.
     * @export {string|undefined}
     */
    this.format;
  }
An object describing the parameters for generating a video thumbnail.
@record @struct