code: func (r Network_Storage_Backup_Evault) CreateOrUpdateLunId(lunId *int) (resp datatypes.Network_Storage_Property, err error) {
  	params := []interface{}{
  		lunId,
  	}
  	err = r.Session.DoRequest("SoftLayer_Network_Storage_Backup_Evault", "createOrUpdateLunId", params, &r.Options, &resp)
  	return
  }
docs: // The LUN ID only takes effect during the Host Authorization process. It is required to de-authorize all hosts before using this method.