code: func deleteEvent(e contract.Event) error {
  	for _, reading := range e.Readings {
  		if err := deleteReadingById(reading.Id); err != nil {
  			return err
  		}
  	}
  	if err := dbClient.DeleteEventById(e.ID); err != nil {
  		return err
  	}
  
  	return nil
  }
docs: // Delete the event and readings