public void ReduceTree(NodeGrouper nodeGrouper)
{
var templateMatcher = new TemplateMatcher(nodeGrouper);
Roots = Roots.ToDictionary(r => r.Key,
r => templateMatcher.Reduce(r.Value));
NoOutputInstructions = NoOutputInstructions.ToDictionary(r => r.Key,
r => templateMatcher.Reduce(r.Value));
}