public CircuitFilter( 
   IEnumerable<string> circuitNames
)

await QueuedTask.Run(() =>
{
  using (CircuitManager circuitManager = utilityNetwork.GetCircuitManager(telecomDomainNetwork))
  {
    // Define a location in the utility network.
    CircuitLocation location = new CircuitLocation(startElement);

    // Get circuit names from the start location
    CircuitFilter circuitFilter = new CircuitFilter([location], CircuitLocationTypeFilter.All) { Hierarchy = CircuitHierarchy.ConsumersAndProviders };
    IReadOnlyList<string> circuitNames = circuitManager.GetCircuitNames(circuitFilter);

    // Get circuits from the start location
    IReadOnlyList<Circuit> circuits = circuitManager.GetCircuits(circuitFilter);

    // Get circuits by names
    circuitFilter = new CircuitFilter(circuitNames);
    circuits = circuitManager.GetCircuits(circuitFilter);

    // Iterate through the circuits.
    foreach (Circuit circuit in circuits)
    {
      Console.WriteLine($"Circuit name: {circuit.GetName()}");
    }
  }

});