namespace InnovEnergy.Lib.Utils; public static class NullableUtils { public static T? Nullable<T>(this T t) where T : struct => t; public static IEnumerable<T> Enumerable<T>(this T? t) where T : struct { if (t.HasValue) yield return t.Value; } public static T ThrowIfNull<T>(this T? t, String message) where T:struct { if (!t.HasValue) throw new NullReferenceException(message); return t.Value; } }