@deftypefun {gnutls_credentials_type_t} {gnutls_auth_server_get_type} (gnutls_session_t @var{session}) @var{session}: is a @code{gnutls_session_t} type. Returns the type of credentials that were used for server authentication. The returned information is to be used to distinguish the function used to access authentication data. @strong{Returns:} The type of credentials for the server authentication schema, a @code{gnutls_credentials_type_t} type. @end deftypefun