@deftypefun {int} {gnutls_alpn_set_protocols} (gnutls_session_t @var{session}, const gnutls_datum_t * @var{protocols}, unsigned @var{protocols_size}, unsigned int @var{flags})
-@var{session}: is a @code{gnutls_session_t} type.
+@var{session}: is a @code{gnutls_session_t} structure.
@var{protocols}: is the protocol names to add.