using System;
using System.Diagnostics.CodeAnalysis;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            Create<Person>();
        }

        static Func<T> Create<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)] T>()
        {
            return () =>
            {
                return Method<T>();   
            };
        }

        static T Method<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)] T>()
        {
            return Activator.CreateInstance<T>();
        }
    }

    public class Person
    {
        public int Age { get; set; }
    }
}

        internal static IHttpClientBuilder AddTypedClientCore<TClient>(this IHttpClientBuilder builder, bool validateSingleType)
            where TClient : class
        {
            ReserveClient(builder, typeof(TClient), builder.Name, validateSingleType);


            builder.Services.AddTransient<TClient>(s =>
            {
                IHttpClientFactory httpClientFactory = s.GetRequiredService<IHttpClientFactory>();
                HttpClient httpClient = httpClientFactory.CreateClient(builder.Name);


                ITypedHttpClientFactory<TClient> typedClientFactory = s.GetRequiredService<ITypedHttpClientFactory<TClient>>();
                return typedClientFactory.CreateClient(httpClient);
            });


            return builder;
        }