ObjFW  Diff

 *
 * \param nItems The number of items to remove
 * \param index The index at which the items are removed
 */
- (void)removeNItems: (size_t)nItems
	     atIndex: (size_t)index;

/**
 * \brief Removes the last item.
 */
- (void)removeLastItem;

/**
 * \brief Returns a string containing the data in Base64 encoding.
 *
 * \return A string containing the data in Base64 encoding
 */
- (OFString*)stringByBase64Encoding;