dotnet-installer/TestAssets/NonRestoredTestProjects/PJAppWithSlnThatDoesNotRefCsproj/TestLibrary/Helper.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace TestLibrary
{
    public static class Lib
    {
        public static string GetMessage()
        {
            return "Hello from TestLibrary.Lib";
        }
    }
}