public KnowledgeGraphLayerIDSet IDSet {get; set;}

QueuedTask.Run(() =>
{
  //To create a KG layer (on a map or link chart) with a subset of
  //entities and relates, you must create an "id set". The workflow
  //is very similar to how you would create a SelectionSet.

  //First, create a dictionary containing the names of the types to be
  //added plus a corresponding list of ids (just like with a selection set).
  //Note: null or an empty list means add all records for "that" type..
  var kg_datamodel = kg.GetDataModel();
  //Arbitrarily get the name of the first entity and relate type
  var first_entity = kg_datamodel.GetEntityTypes().Keys.First();
  var first_relate = kg_datamodel.GetRelationshipTypes().Keys.First();

  //Make entries in the dictionary for each
  var dict = new Dictionary<string, List<long>>();
  dict.Add(first_entity, new List<long>());//Empty list means all records
  dict.Add(first_relate, null);//null list means all records
  //or specific records - however the ids are obtained
  //dict.Add(entity_or_relate_name, new List<long>() { 1, 5, 18, 36, 78});

  //Create the id set...
  var idSet = KnowledgeGraphLayerIDSet.FromDictionary(kg, dict);

  //Create the layer params and assign the id set
  var kg_params = new KnowledgeGraphLayerCreationParams(kg)
  {
    Name = "KG_With_ID_Set",
    IsVisible = false,
    IDSet = idSet
  };

  //Call layer factory with map or group layer container
  //A KG layer containing just the feature layer(s) and/or standalone table(s)
  //for the entity and/or relate types + associated records will be created
  var kg_layer = LayerFactory.Instance.CreateLayer<KnowledgeGraphLayer>(
      kg_params, map);

});