PowerShell and IEnumerable<T>

How would you solve it?

This Call to C#

Add-Type -Language CSharpVersion3 -TypeDefinition @"
using System;
using System.Collections.Generic;
using System.Linq;

public class TestClass {
    public void Test(IEnumerable<int> id) {        
        id.ToList().ForEach(i=> Console.WriteLine("{0}\r", i));
    }
}    
"@            
            
(New-Object TestClass).Test((1,2,3))            

Results in this Error

Cannot convert argument "id", with value: "System.Object[]", for "Test" to type 
    "System.Collections.Generic.IEnumerable`1[System.Int32]": "Cannot 
convert the "System.Object[]" value of type "System.Object[]" to type 
    "System.Collections.Generic.IEnumerable`1[System.Int32]"."
At C:\testClass1.ps1:12 char:1
+ (New-Object TestClass).Test((1,2,3))
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodException
    + FullyQualifiedErrorId : MethodArgumentConversionInvalidCastArgument

One Solution

In PowerShell, I can code around it by explicitly typing  the array. I don’t like it, too much typing.

(New-Object TestClass).Test([int[]](1,2,3))

Thoughts

Since I have access to the C# source, I’d prefer to use int[] id and not use IEnumerable for the parameter in the Test method.  This way, when others work with my code from PowerShell the principal of least surprise is at work. How much do I trade doing it this way? Is it only style points?

How would you solve it?