@deftypefun {gnutls_privkey_type_t} {gnutls_privkey_get_type} (gnutls_privkey_t @var{key})
@var{key}: should contain a @code{gnutls_privkey_t}  type

This function will return the type of the private key. This is
actually the type of the subsystem used to set this private key.

@strong{Returns:} a member of the @code{gnutls_privkey_type_t}  enumeration on
success, or a negative error code on error.

@strong{Since:} 2.12.0
@end deftypefun