AddAnnotation (TWITBaseElement)

AddItem (TWITTupleType)

create (TWITBaseElement)

Create (TWITType)

Create (TWITTupleType)

destroy (TWITBaseElement)

Destroy (TWITTupleType)

pt 

IsNamed (TWITType)

pt 

ToString (TWITType)

ToString (TWITTupleType)