constructor(libraryVersion, onPending, onExpired) {
    /** @private {!shaka.deprecate.Version} */
    this.libraryVersion_ = libraryVersion;

    /** @private {shaka.deprecate.Listener} */
    this.onPending_ = onPending;
    /** @private {shaka.deprecate.Listener} */
    this.onExpired_ = onExpired;
  }
@param {!shaka.deprecate.Version} libraryVersion
@param {shaka.deprecate.Listener} onPending
@param {shaka.deprecate.Listener} onExpired