c# 7 tuples enable

1. Enable tuple
 Install System.Tuples from NuGet Package Manager

2. c#7  new tuple return

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Net.Http;

using System.Web.Http;

using WebApplication8.Models;

namespace WebApplication8.Controllers

{

    public class home_Controller : ApiController

    {
        //type1 

        [HttpGet]

        public (int st, string msg, List<Employee> emp_list) Get_Data([FromUri] Employee d)

        {

            int status = 1;

            string message = "Success";

            List<Employee> employee_list = new List<Employee>() { new Employee { Address = "Agra", Emp_Name = "Rinkesh", Mobile = 987998, Srno = 1 }

            ,new Employee { Address="Agra",Emp_Name="Manish",Mobile=987998,Srno=2 }

            ,new Employee { Address="Sandeep",Emp_Name="Mathura",Mobile=5555,Srno=3}

            };

            return (st: status, msg: message, emp_list: employee_list);

        }

       
        //type2 

        [HttpGet]

        public (int st, string msg, List<Employee> emp_list) Get_Data([FromUri] Employee d)

        {

            int status = 1;

            string message = "Success";

            List<Employee> employee_list = new List<Employee>() { new Employee { Address = "Agra", Emp_Name = "Rinkesh", Mobile = 987998, Srno = 1 }

            ,new Employee { Address="Agra",Emp_Name="Manish",Mobile=987998,Srno=2 }

            ,new Employee { Address="Sandeep",Emp_Name="Mathura",Mobile=5555,Srno=3}

            };

            return (status, message, employee_list);

        }

    }

}