code: func (kb dbKeybase) List() ([]Info, error) {
  	var res []Info
  	iter := kb.db.Iterator(nil, nil)
  	defer iter.Close()
  	for ; iter.Valid(); iter.Next() {
  		info, err := readInfo(iter.Value())
  		if err != nil {
  			return nil, err
  		}
  		res = append(res, info)
  	}
  	return res, nil
  }
docs: // List returns the keys from storage in alphabetical order.