PreviewHandlerProxyDoPreviewAsync - метод

public ValueTask DoPreviewAsync(
	CancellationToken cancellationToken = default
)

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

public:
virtual ValueTask DoPreviewAsync(
	CancellationToken cancellationToken = CancellationToken()
) sealed

abstract DoPreviewAsync : 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> ValueTask 
override DoPreviewAsync : 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> ValueTask