PreviewHandlerWpfControlUnloadAsync - метод

public ValueTask UnloadAsync(
	CancellationToken cancellationToken = default
)

Public Function UnloadAsync ( 
	Optional cancellationToken As CancellationToken = Nothing
) As ValueTask

public:
ValueTask UnloadAsync(
	CancellationToken cancellationToken = CancellationToken()
)

member UnloadAsync : 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> ValueTask