using System;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        Func<string, Task> f = x => { return Task.CompletedTask; };
        Func<string, Task> actual = null;
        AssertSame(f, actual);
    }

    public static void AssertSame(object expected, object actual) { }
}