A good way to save constant identifier strings in C#

constant-strings.cs

using System;
using System.Runtime.CompilerServices;
					
public class Program
{
	public static readonly string IdString = CallerName();
	public static readonly string IdString2 = CallerName();
	
	public static string CallerName([CallerMemberName]string name = default)
	    => name;
	
	public static void Main()
	{
		Console.WriteLine(IdString + IdString2);
	}
}