Is there a sample for the Implicit indexer access in object initializers

[WeihanLi]

When I try to use the implicit indexer access example for the document, could not make it work, did I miss something?

int[] numbers =
{
   [^1] = 4,
   [^2] = 3,
   [^3] = 2,
   [^4] = 1,
};

Would get an error likes CS0131: The left-hand side of an assignment must be a variable, property or indexer

related docs issue: dotnet/docs#42674

[WeihanLi]

need to be inside a object

internal class ImplicitIndexAccessSample
{
    public static void MainTest()
    {
        var a = new TestClass()
        {
            Numbers =
            {
                [0] = 3,
                [^1] = 1
            }
        };
        foreach (var item in a.Numbers)
        {
            Console.WriteLine(item);
        }
    }
}

file sealed class TestClass
{
    public int[] Numbers { get; init; } = new int[3];
}