using System.Collections.Generic;
public static void Main()
Console.WriteLine("Hello World");
int[] number = { 1, 2, 3, 4, 5 };
var result = number is [_, _, 3, _];
Console.WriteLine(result);
public string MyProperty {get;set;}
public BusinessMetadata MyBusinessMetadata {get;set;}
public class BusinessMetadata
public string TechnicalId {get;set;}
public Invoice MyInvoice {get;set;}
public string MyInvoice {get;set;}