code: func (v *memdbView) GetID(name string) (string, error) {
  	s, err := v.txn.First(memdbNamesTable, memdbIDIndex, name)
  	if err != nil {
  		return "", err
  	}
  	if s == nil {
  		return "", ErrNameNotReserved
  	}
  	return s.(nameAssociation).containerID, nil
  }
docs: // GetID returns the container ID that the passed in name is reserved to.