ITreeItemAddItemsAsync - метод

Function AddItemsAsync ( 
	<NotNullAttribute> treeItems As IEnumerable(Of ITreeItem),
	Optional cancellationToken As CancellationToken = Nothing
) As Task

Task^ AddItemsAsync(
	[NotNullAttribute] IEnumerable<ITreeItem^>^ treeItems, 
	CancellationToken cancellationToken = CancellationToken()
)

abstract AddItemsAsync : 
        [<NotNullAttribute>] treeItems : IEnumerable<ITreeItem> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task