PlatformExtensionsWaitOneAsync(WaitHandle, CancellationToken) - метод

public static Task WaitOneAsync(
	this WaitHandle waitHandle,
	CancellationToken cancellationToken = default
)

<ExtensionAttribute>
Public Shared Function WaitOneAsync ( 
	waitHandle As WaitHandle,
	Optional cancellationToken As CancellationToken = Nothing
) As Task

public:
[ExtensionAttribute]
static Task^ WaitOneAsync(
	WaitHandle^ waitHandle, 
	CancellationToken cancellationToken = CancellationToken()
)

[<ExtensionAttribute>]
static member WaitOneAsync : 
        waitHandle : WaitHandle * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task