StoreCardFuncAsync - делегат

public delegate CardStoreOperationToken StoreCardFuncAsync(
	CardStoreRequest request,
	IFileContainer fileContainer,
	Func<double, CancellationToken, ValueTask> updateProgressAsync = null,
	int updateProgressMillisecondInterval = -1,
	CancellationToken cancellationToken = default
)

Public Delegate Function StoreCardFuncAsync ( 
	request As CardStoreRequest,
	fileContainer As IFileContainer,
	Optional updateProgressAsync As Func(Of Double, CancellationToken, ValueTask) = Nothing,
	Optional updateProgressMillisecondInterval As Integer = -1,
	Optional cancellationToken As CancellationToken = Nothing
) As CardStoreOperationToken

public delegate CardStoreOperationToken^ StoreCardFuncAsync(
	CardStoreRequest^ request, 
	IFileContainer^ fileContainer, 
	Func<double, CancellationToken, ValueTask>^ updateProgressAsync = nullptr, 
	int updateProgressMillisecondInterval = -1, 
	CancellationToken cancellationToken = CancellationToken()
)

type StoreCardFuncAsync = 
    delegate of 
        request : CardStoreRequest * 
        fileContainer : IFileContainer * 
        ?updateProgressAsync : Func<float, CancellationToken, ValueTask> * 
        ?updateProgressMillisecondInterval : int * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _updateProgressAsync = defaultArg updateProgressAsync null
        let _updateProgressMillisecondInterval = defaultArg updateProgressMillisecondInterval -1
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> CardStoreOperationToken