using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    interface IUserPermission {}

    class Permission1 : IUserPermission {}

    class Permission2 : IUserPermission {}

    interface IUserRole

    {

        bool HasPermission<T>() where T : IUserPermission;

    }

    class NormalUser : IUserRole

    {

        private static readonly List<IUserPermission> _permissions = new() 

        {

            new Permission1()

        };

        public bool HasPermission<T>() where T : IUserPermission

        {

            return _permissions.OfType<T>().Any();

        }

    }

    class Administrator : IUserRole

    {

        private static readonly List<IUserPermission> _permissions = new() 

        {

            new Permission1(),

            new Permission2()

        };

        public bool HasPermission<T>() where T : IUserPermission

        {

            return _permissions.OfType<T>().Any();

        }

    }

    public static void Main()

    {

        IUserRole role = new Administrator();

        var hasPermission = role.HasPermission<Permission1>();

        Console.WriteLine($"Has Permission: {hasPermission}");

    }

}