NotificationWindowCloseAllAsync - метод

public static Task CloseAllAsync(
	bool fade = false
)

Public Shared Function CloseAllAsync ( 
	Optional fade As Boolean = false
) As Task

public:
static Task^ CloseAllAsync(
	bool fade = false
)

static member CloseAllAsync : 
        ?fade : bool 
(* Defaults:
        let _fade = defaultArg fade false
*)
-> Task