@Nullable
    @Override
    public ObjectNode getJsonConfig() {
        final ObjectNode node = JsonUtils.createObjectNode();
        JsonUtils.setInt(node, "listid", listId);
        return node;
    }
filters for any one listid. Supports Storedlist as well as Psuedolist
main/src/main/java/cgeo/geocaching/filters/core/ListIdGeocacheFilter.java