code: func (c *Manager) GetLibraryItems(ctx context.Context, libraryID string) ([]Item, error) {
  	ids, err := c.ListLibraryItems(ctx, libraryID)
  	if err != nil {
  		return nil, fmt.Errorf("get library items failed for: %s", err)
  	}
  	var items []Item
  	for _, id := range ids {
  		item, err := c.GetLibraryItem(ctx, id)
  		if err != nil {
  			return nil, fmt.Errorf("get library item for %s failed for %s", id, err)
  		}
  		items = append(items, *item)
  	}
  	return items, nil
  }
docs: // GetLibraryItems returns a list of all the library items for the specified library.