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