Automapper list to int(count)

using AutoMapper;
using System.Collections.Generic;

public class MyClass
{
    public int MyProperty { get; set; }
}

public class MyDto
{
    public int Count { get; set; }
}

public class MyProfile : Profile
{
    public MyProfile()
    {
        CreateMap<List<MyClass>, MyDto>()
            .ForMember(dest => dest.Count, opt => opt.MapFrom(src => src.Count));
    }
}

public class Program
{
    public static void Main(string[] args)
    {
        var config = new MapperConfiguration(cfg => cfg.AddProfile<MyProfile>());
        var mapper = config.CreateMapper();

        var myList = new List<MyClass>
        {
            new MyClass(),
            new MyClass(),
            new MyClass()
        };

        var myDto = mapper.Map<List<MyClass>, MyDto>(myList);

        Console.WriteLine($"Count: {myDto.Count}");
    }
}