public class KnowledgeGraphEntityValue : KnowledgeGraphNamedObjectValue, System.IDisposable  

//Use GetDocumentEntityTypeName(KnowledgeGraphDataModel kg_dm) from
//the 'Get Whether KG Has a Document Type' snippet to
//get the documentNameType parameter
protected bool GetEntityIsDocument(KnowledgeGraphEntityValue entity,
  string documentNameType = "")
{
  if (string.IsNullOrEmpty(documentNameType))
    return false;
  return entity.GetTypeName() == documentNameType;
}

//Use GetDocumentEntityTypeName(KnowledgeGraphDataModel kg_dm) from
//the 'Get Whether KG Has a Document Type' snippet to
//get the documentNameType parameter
protected bool HasGeometry(KnowledgeGraphNamedObjectType kg_named_obj)
{
  var props = kg_named_obj.GetProperties();
  return props.Any(prop => prop.FieldType == FieldType.Geometry);
}