HashCalculateDelegateAsync - делегат

public delegate Task<byte[]> HashCalculateDelegateAsync(
	[CanBeNullAttribute] Stream stream,
	CancellationToken cancellationToken = default
)

Public Delegate Function HashCalculateDelegateAsync ( 
	<CanBeNullAttribute> stream As Stream,
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of Byte())

public delegate Task<array<unsigned char>^>^ HashCalculateDelegateAsync(
	[CanBeNullAttribute] Stream^ stream, 
	CancellationToken cancellationToken = CancellationToken()
)

type HashCalculateDelegateAsync = 
    delegate of 
        [<CanBeNullAttribute>] stream : Stream * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task<byte[]>