public void AddOptionalGraphs(QueryGraph firstGraph, params QueryGraph[] moreGraphs)
{
AddAlternativeGraphs(firstGraph, moreGraphs);
optionalAlternativeIndices.Add(alternativeGraphs.Count - 1);
}
public void AddAlternativeGraphs(QueryGraph firstGraph, params QueryGraph[] moreGraphs)
{
AddAlternativeGraphs(new[] { firstGraph }.Concat(moreGraphs));
}