IForumProviderAddTopicAsync - метод

Function AddTopicAsync ( 
	cardID As Guid,
	topic As TopicModel,
	Optional authorAction As TopicAuthorAction = TopicAuthorAction.AddParticipantAndSubscribe,
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of ( As ForumResponse,  As ValidationResult))

Task<ValueTuple<ForumResponse^, ValidationResult^>>^ AddTopicAsync(
	Guid cardID, 
	TopicModel^ topic, 
	TopicAuthorAction authorAction = TopicAuthorAction::AddParticipantAndSubscribe, 
	CancellationToken cancellationToken = CancellationToken()
)

abstract AddTopicAsync : 
        cardID : Guid * 
        topic : TopicModel * 
        ?authorAction : TopicAuthorAction * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _authorAction = defaultArg authorAction TopicAuthorAction.AddParticipantAndSubscribe
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task<ValueTuple<ForumResponse, ValidationResult>>