CardExtensionsTryAddTaskAsync - метод

<ExtensionAttribute>
Public Shared Function TryAddTaskAsync ( 
	cardRepository As ICardRepository,
	card As Card,
	taskTypeID As Guid,
	state As CardRowState,
	roleID As Guid,
	roleName As String,
	Optional planned As DateTime? = Nothing,
	Optional digest As String = Nothing,
	Optional taskRowID As Guid? = Nothing,
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of (task As CardTask, result As ValidationResult))

public:
[ExtensionAttribute]
static Task<ValueTuple<CardTask^, ValidationResult^>>^ TryAddTaskAsync(
	ICardRepository^ cardRepository, 
	Card^ card, 
	Guid taskTypeID, 
	CardRowState state, 
	Guid roleID, 
	String^ roleName, 
	Nullable<DateTime> planned = nullptr, 
	String^ digest = nullptr, 
	Nullable<Guid> taskRowID = nullptr, 
	CancellationToken cancellationToken = CancellationToken()
)

[<ExtensionAttribute>]
static member TryAddTaskAsync : 
        cardRepository : ICardRepository * 
        card : Card * 
        taskTypeID : Guid * 
        state : CardRowState * 
        roleID : Guid * 
        roleName : string * 
        ?planned : Nullable<DateTime> * 
        ?digest : string * 
        ?taskRowID : Nullable<Guid> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _planned = defaultArg planned null
        let _digest = defaultArg digest null
        let _taskRowID = defaultArg taskRowID null
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task<ValueTuple<CardTask, ValidationResult>>