async function init() {
  logger.debug('Scene.init');
  // get timezone settings
  const timezone = await this.variable.getValue(SYSTEM_VARIABLE_NAMES.TIMEZONE);
  if (timezone) {
    this.timezone = timezone;
  }
  // get all scenes
  const scenes = await db.Scene.findAll();
  const plainScenes = scenes.map((scene) => {
    const plainScene = scene.get({ plain: true });
    logger.debug(`Loading scene ${plainScene.name}`);
    try {
      this.addScene(plainScene);
      this.brain.addNamedEntity('scene', plainScene.selector, plainScene.name);
      logger.debug(`Scene loaded with success`);
    } catch (e) {
      logger.warn(`Unable to load scene ${plainScene.name}`);
      logger.warn(e);
    }

    return plainScene;
  });

  // Recurrence rule (00:00 every day) to update sunrise/sunset time.
  const rule = { tz: this.timezone, hour: 0, minute: 0, second: 0 };
  this.scheduler.scheduleJob(rule, this.dailyUpdate.bind(this));
  await this.dailyUpdate();

  //  At every minute, check if calendar event is coming
  this.scheduler.scheduleJob('* * * * *', () => this.event.emit(EVENTS.CALENDAR.CHECK_IF_EVENT_IS_COMING));

  return plainScenes;
}
@description Load all scenes from the database to the trigger store.
@returns {Promise} Resolve when success.
@example
scene.init();