_downloadProgressHandler(progressObj) {
    log.debug('Update download progress', progressObj);
    this.state = 5;
    this.lastInfoObject = progressObj;
    this.emit('notify-windows', 'download-progress', progressObj);
  }
/**
   * Emitted on progress.
   *
   * @param {Object} progressObj Progress info data. Contains `progress`
   * property whoich has following properties:
   * - bytesPerSecond
   * - percent
   * - total
   * - transferred
   */
Emitted on progress.
@param {Object} progressObj Progress info data. Contains `progress`
property whoich has following properties:
- bytesPerSecond
- percent
- total
- transferred
Emitted on progress . @param { Object } progressObj Progress info data . Contains ` progress ` property whoich has following properties : - bytesPerSecond - percent - total - transferred
_downloadProgressHandler(progressObj) {
    log.debug('Update download progress', progressObj);
    this.state = 5;
    this.lastInfoObject = progressObj;
    this.emit('notify-windows', 'download-progress', progressObj);
  }
_downloadProgressHandler ( progressObj ) { log . debug ( 'Update download progress' , progressObj ) ; this . state = 5 ; this . lastInfoObject = progressObj ; this . emit ( 'notify-windows' , 'download-progress' , progressObj ) ; }
Emitted on progress.
Emitted on progress .