TYPEMAP
Net::CUPS::Destination	cups_dest_t*
cups_dest_t *	T_PTRREF
ppd_file_t *	T_PTRREF
http_t *		T_PTRREF
ipp_t *			T_PTRREF
ipp_op_t		T_IV
size_t *		T_IV
ipp_tag_e		T_IV
ipp_tag_t		T_IV
const char *	T_PV