pub unsafe extern "C" fn g_tls_database_lookup_certificate_issuer(
self_: *mut GTlsDatabase,
certificate: *mut GTlsCertificate,
interaction: *mut GTlsInteraction,
flags: GTlsDatabaseLookupFlags,
cancellable: *mut GCancellable,
error: *mut *mut GError
) -> *mut GTlsCertificate