namespace JetBrains.ReSharper.Koans.Navigation.ExampleCode
{
    public class Person
    {
        public string Name { get; private set; }
        public int Age { get; private set; }

        public Person(string name, int age)
        {
            Name = name;
            Age = age;
        }
    }

    public class DocumentViewModel
    {
        // ...
    }

    public class SettingsViewModel
    {
        
        // ...
    }

    public class SettingsViewManager
    {
        // ...
    }

    public class PersonRepository
    {
        public void AddPerson(Person person)
        {
        }

        public void RemovePerson(Person person)
        {
        }
    }
}