Passing a ValueTuple return type as an argument.

Question

I am interested in retrieving a tuple of multiple values from a class method and then passing that result directly to another class method. See example code to see what I intend (it does not compile):

 

Edit: I realize that I could use "(double, double) myVar" as the parameter and then use myVar.Item1, and myVar.Item2, but I would prefer to be able to use the terms that I define and not something so generic. 

class ClassA
{
    public static (double, double) GetTuple()
    {
        return (12.5, 13.5);
    }
}

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        ClassB.ShowTuple(ClassA.GetTuple());
    }
}

public static class ClassB
{
    public static void ShowTuple((double myVar1, double myVar2))
    {
        Console.WriteLine(myVar1);
        Console.WriteLine(myVar2);
    }
}

The problem appears to be in ClassB with the parameter passed to ShowTuple. I tried it without the extra parenthesis, as a Tuple, ValueTuple, etc., but nothing seems to work.

 

Does anyone know what I am missing?

Thanks!