@deftypefun {int} {gnutls_pkcs12_bag_set_data} (gnutls_pkcs12_bag_t @var{bag}, gnutls_pkcs12_bag_type_t @var{type}, const gnutls_datum_t * @var{data}) @var{bag}: The bag @var{type}: The data's type @var{data}: the data to be copied. This function will insert the given data of the given type into the bag. @strong{Returns:} the index of the added bag on success, or a negative value on error. @end deftypefun