class AmplNetworkReader {

    public AmplNetworkReader readHvdcLines() throws IOException {
        read("_hvdc", 4, this::readHvdcLine);

        return this;
    }

    public  AmplNetworkReader(ReadOnlyDataSource dataSource, Network network, int variantIndex, StringToIntMapper<AmplSubset> mapper);
    public  AmplNetworkReader(ReadOnlyDataSource dataSource, Network network, StringToIntMapper<AmplSubset> mapper);

}