reply = dbus_message_new_method_return (message);
dbus_message_iter_init_append (reply, &iter);
dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
SPI_CACHE_ITEM_SIGNATURE, &iter_array);
reply = dbus_message_new_method_return (message);
dbus_message_iter_init_append (reply, &iter);
dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
SPI_CACHE_ITEM_SIGNATURE, &iter_array);