pub unsafe extern "C" fn g_dbus_connection_send_message_with_reply_sync(
    connection: *mut GDBusConnection,
    message: *mut GDBusMessage,
    flags: GDBusSendMessageFlags,
    timeout_msec: c_int,
    out_serial: *mut u32,
    cancellable: *mut GCancellable,
    error: *mut *mut GError,
) -> *mut GDBusMessage