using System;

public class Program

{

    public static void Main()

    {

        var testTuple = new Tuple<int, double>(1,2);

        var testTuple2 = (1,2);

        SomeFunction(testTuple);

        SomeFunction(testTuple2);

    }

​

    public static void SomeFunction((int, double) testTuple) 

    {

        var (test, test2) = testTuple;

        Console.WriteLine(test);

        Console.WriteLine(test2);

        Console.WriteLine(testTuple);

    }

    public static void SomeFunction(Tuple<int, double> testTuple)

    {

        Console.WriteLine(testTuple.Item1);

        Console.WriteLine(testTuple.Item2);

        Console.WriteLine(testTuple);

    }

}