public StateLRSResponse RetrieveState(
	string id,
	Activity activity,
	Agent agent,
	Nullable<Guid> registration = null
)

Public Function RetrieveState ( 
	id As String,
	activity As Activity,
	agent As Agent,
	Optional registration As Nullable(Of Guid) = Nothing
) As StateLRSResponse

public:
virtual StateLRSResponse^ RetrieveState(
	String^ id, 
	Activity^ activity, 
	Agent^ agent, 
	Nullable<Guid> registration = nullptr
) sealed

abstract RetrieveState : 
        id : string * 
        activity : Activity * 
        agent : Agent * 
        ?registration : Nullable<Guid> 
(* Defaults:
        let _registration = defaultArg registration null
*)
-> StateLRSResponse 
override RetrieveState : 
        id : string * 
        activity : Activity * 
        agent : Agent * 
        ?registration : Nullable<Guid> 
(* Defaults:
        let _registration = defaultArg registration null
*)
-> StateLRSResponse