using System;
using System.Collections.ObjectModel;
using System.Diagnostics.Contracts;

namespace Modelo
{
    public abstract class IRepositorio<T>
    {
        public IEnumerable<T> Listar();
        public abstract T ObtenerPorId(int Tid);
        public abstract void Add(T t);
        public abstract void Del(T t);
        public abstract void Mod(T t);
        public abstract bool Guardar();
    }
}