/// <summary>
 /// Handles the event.
 /// </summary>
 /// <param name="message">The message.</param>
 /// <returns>the task</returns>
 public async Task HandleEvent(EntityDeletedMessage <SystemSetting> message)
 {
     await this.Clean();
 }
 private void HandleEntityDeleted(EntityDeletedMessage message)
 {
     HandleEntityRemove(message.Entity);
 }