public CatRepository() { var barry = new Cat() { Birth = TimestampFactory.GetTimestamp(new DateTime(2017, 11, 5, 3, 45, 0)), Hungry = false, Mood = Mood.Amber, Id = Guid.NewGuid().ToString(), Name = "Barry" }; var doug = new Cat() { Birth = TimestampFactory.GetTimestamp(new DateTime(2018, 5, 4, 13, 25, 13)), Hungry = true, Mood = Mood.Red, Id = Guid.NewGuid().ToString(), Name = "Doug" }; var fluffy = new Cat() { Birth = TimestampFactory.GetTimestamp(new DateTime(2010, 2, 19, 4, 15, 25)), Hungry = false, Mood = Mood.Green, Id = Guid.NewGuid().ToString(), Name = "Fluffy" }; Cats.AddOrOverwrite(barry.Id, barry); Cats.AddOrOverwrite(doug.Id, doug); Cats.AddOrOverwrite(fluffy.Id, fluffy); }