class Program
    {
        static void Main(string[] args)
        {
            var test = new {Id = (int) 1.9, Name = (string) "string"};
            var df = Magic(test);
            
        }

        static MyClass<T> Magic<T>(T t)
        {

            return new MyClass<T>(t);
        }

        class MyClass<T>
        {
           readonly List<T> _list=new List<T>();

            public MyClass(T t)
            {
                _list.Add(t);
            }

            public IEnumerable<T> EnumerableT
            {
                get
                {
                    return _list;
                }
            }
        }
     
    }