We need Geometrybase and Attributes for creating block definition when we have geometry objects.
Bur what to do when we have Text entity or Text annotation
var geometry = new System.Collections.Generic.List<Rhino.Geometry.GeometryBase>();
var attributes = new System.Collections.Generic.List<Rhino.DocObjects.ObjectAttributes>();
...................
int idef_index = doc.InstanceDefinitions.Add(idef_name, string.Empty, base_point, geometry, attributes);
When we create a Text we say this
Guid id= doc.Objects.AddText(text, plane, height, font, false, false, att8);
Now how to retrieve the GeometryBase from a guid for text?
In short, How can I add text objects with the block definition?