public bool CanCreateLayer<T>( 
   LayerCreationParams layerParams,
   ILayerContainerEdit container
)
where T: Layer

QueuedTask.Run(() =>
{
  //Feature class and/or standalone tables representing KG entity and
  //relate types can only be added to a map (or link chart) as a child
  //of a KnowledgeGraph layer....

  //For example:
  var fc = kg.OpenDataset<FeatureClass>("Some_Entity_Or_Relate_Name");
  try
  {
    //Attempting to create a feature layer containing the returned fc
    //NOT ALLOWED - can only be a child of a KG layer
    var fl_params_w_kg = new FeatureLayerCreationParams(fc);
    //CanCreateLayer will return false
    if (!(LayerFactory.Instance.CanCreateLayer<FeatureLayer>(
      fl_params_w_kg, map)))
    {
      System.Diagnostics.Debug.WriteLine(
        $"Cannot create a feature layer for {fc.GetName()}");
      return;
    }
    //This will throw an exception
    LayerFactory.Instance.CreateLayer<FeatureLayer>(fl_params_w_kg, map);
  }
  catch (Exception ex)
  {
    System.Diagnostics.Debug.WriteLine(ex.ToString());
  }

  //Can only be added as a child of a parent KG
  var dict = new Dictionary<string, List<long>>();
  dict.Add(fc.GetName(), new List<long>());
  var kg_params = new KnowledgeGraphLayerCreationParams(kg)
  {
    Name = $"KG_With_Just_{fc.GetName()}",
    IsVisible = false,
    IDSet = KnowledgeGraphLayerIDSet.FromDictionary(kg, dict)
  };
  var kg_layer = LayerFactory.Instance.CreateLayer<KnowledgeGraphLayer>(
    kg_params, map);

});