public enum KnowledgeGraphNamedTypeCategory : System.Enum, System.IComparable, System.IConvertible, System.IFormattable  

//On the QueuedTask...
//and assuming you have established a connection to a knowledge graph
//...
//Construct a KG search filter. Search text uses Apache Lucene Query Parser
//syntax - https://lucene.apache.org/core/2_9_4/queryparsersyntax.html
var kg_sf = new KnowledgeGraphSearchFilter()
{
  SearchTarget = KnowledgeGraphNamedTypeCategory.Entity,
  SearchText = "Acme Electric Co.",
  ReturnSearchContext = true,
  MaxRowCount = 10 //Default is 100 if not specified
};
      
//submit the search - returns a KnowledgeGraphCursor
using (var kg_rc = kg.SubmitSearch(kg_sf))
{
  //wait for rows to be returned from the server
  //note the "await"...
  while (await kg_rc.WaitForRowsAsync())
  {
    //Rows have been retrieved - process this "batch"...
    while (kg_rc.MoveNext())
    {
      //Get the current KnowledgeGraphRow
      using (var graph_row = kg_rc.Current)
      {
        //Graph row is an array, process all returned values...
        var val_count = (int)graph_row.GetCount();
        for (int i = 0; i < val_count; i++)
        {
          var retval = graph_row[i];
          //Process row value (note: recursive)
          //See "Process a KnowledgeGraphRow Value" snippet
          ProcessKnowledgeGraphRowValue(retval);
        }
      }
    }
  }//WaitForRowsAsync
}//SubmitSearch