NotificationExtensionHelperSendNotificationsAsyncTNotification, TNotificationData - метод

Public Shared Function SendNotificationsAsync(Of TNotification As INotification, TNotificationData As {Object, INotificationData(Of TNotification)}) ( 
	context As INotificationContext,
	notifications As ICollection(Of TNotification),
	dataList As IEnumerable(Of TNotificationData),
	getSubjectFuncAsync As GetNotificationSubjectFuncAsync(Of TNotification, TNotificationData),
	getBodyFuncAsync As GetNotificationBodyFuncAsync(Of TNotification, TNotificationData),
	Optional cancellationToken As CancellationToken = Nothing
) As Task

public:
generic<typename TNotification, typename TNotificationData>
where TNotification : INotification
where TNotificationData : Object, INotificationData<TNotification>
static Task^ SendNotificationsAsync(
	INotificationContext^ context, 
	ICollection<TNotification>^ notifications, 
	IEnumerable<TNotificationData>^ dataList, 
	GetNotificationSubjectFuncAsync<TNotification, TNotificationData>^ getSubjectFuncAsync, 
	GetNotificationBodyFuncAsync<TNotification, TNotificationData>^ getBodyFuncAsync, 
	CancellationToken cancellationToken = CancellationToken()
)

static member SendNotificationsAsync : 
        context : INotificationContext * 
        notifications : ICollection<'TNotification> * 
        dataList : IEnumerable<'TNotificationData> * 
        getSubjectFuncAsync : GetNotificationSubjectFuncAsync<'TNotification, 'TNotificationData> * 
        getBodyFuncAsync : GetNotificationBodyFuncAsync<'TNotification, 'TNotificationData> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task  when 'TNotification : INotification when 'TNotificationData : Object and INotificationData<'TNotification>