@deftypefun {int} {gnutls_session_set_id} (gnutls_session_t @var{session}, const gnutls_datum_t * @var{sid})
@var{session}: is a @code{gnutls_session_t}  type.

@var{sid}: the session identifier

This function sets the session ID to be used in a client hello.
This is a function intended for exceptional uses. Do not use this
function unless you are implementing a custom protocol.

To set session resumption parameters use @code{gnutls_session_set_data()}  instead.

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned, otherwise
an error code is returned.

@strong{Since:} 3.2.1
@end deftypefun