namespace View_by_Distance.Shared.Models.Stateless.Methods; public interface IAge { // ... (int, TimeSpan) TestStatic_GetAge(long minuendTicks, long subtrahendTicks); static (int, TimeSpan) GetAge(long minuendTicks, long subtrahendTicks) => Age.GetAge(minuendTicks, subtrahendTicks); (int, TimeSpan) TestStatic_GetAge(long minuendTicks, DateTime subtrahend); static (int, TimeSpan) GetAge(long minuendTicks, DateTime subtrahend) => Age.GetAge(minuendTicks, subtrahend); (int, TimeSpan) TestStatic_GetAge(DateTime minuend, DateTime subtrahend); static (int, TimeSpan) GetAge(DateTime minuend, DateTime subtrahend) => Age.GetAge(minuend, subtrahend); }