.Net: New Feature: Ingerating .Net authorization with tool calling

[maghawry74]

Code Example
public class TimeTool
{
[KernelFunction, Description("Provides the current date and time.")]
[Authorize] // only sends this tool when the user is authenticated
public static string GetTime() => DateTime.UtcNow.ToString("R", CultureInfo.InvariantCulture);
}

and so on.