1using System;
 2using System.Collections.Generic;
 3using presentation.windows.server.domain;
 4
 5namespace presentation.windows.server.orm
 6{
 7    public interface PersonRepository
 8    {
 9        void save(Person person);
10        Person find_by(Guid id);
11        IEnumerable<Person> find_all();
12    }
13}