UIContextExecutorAsync - делегат

public delegate ValueTask UIContextExecutorAsync(
	Func<IUIContext, CancellationToken, ValueTask> actionToExecuteInContextAsync,
	CancellationToken cancellationToken = default
)

Public Delegate Function UIContextExecutorAsync ( 
	actionToExecuteInContextAsync As Func(Of IUIContext, CancellationToken, ValueTask),
	Optional cancellationToken As CancellationToken = Nothing
) As ValueTask

public delegate ValueTask UIContextExecutorAsync(
	Func<IUIContext^, CancellationToken, ValueTask>^ actionToExecuteInContextAsync, 
	CancellationToken cancellationToken = CancellationToken()
)

type UIContextExecutorAsync = 
    delegate of 
        actionToExecuteInContextAsync : Func<IUIContext, CancellationToken, ValueTask> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> ValueTask