public IReadOnlyList<Selection> GetFeaturesForElements( 
   IEnumerable<Element> elements
)

{
  // This routine demonstrates how to get a list of feature selections from a list of elements
  static void FeatureSelectionsFromTrace(UtilityNetwork utilityNetwork, TraceArgument traceArgument)
  {
    // Get the trace manager from the utility network
    using TraceManager traceManager = utilityNetwork.GetTraceManager();
    UpstreamTracer tracer = traceManager.GetTracer<UpstreamTracer>();
    IReadOnlyList<Result> tracerResults = tracer.Trace(traceArgument);

    foreach (Result traceResult in tracerResults)
    {
      if (traceResult is ElementResult elementResult)
      {
        IReadOnlyList<Element> elements = elementResult.Elements;

        // Feature selection from a list of elements
        IReadOnlyList<Selection> selections = utilityNetwork.GetFeaturesForElements(elements);
      }
    }
  }
}