pub unsafe extern "C" fn g_tls_database_lookup_certificate_issuer_async(
    self_: *mut GTlsDatabase,
    certificate: *mut GTlsCertificate,
    interaction: *mut GTlsInteraction,
    flags: GTlsDatabaseLookupFlags,
    cancellable: *mut GCancellable,
    callback: GAsyncReadyCallback,
    user_data: gpointer,
)