public static T SampleOne <T>( this IGen <T> gen, int?seed = null, int?size = null) => gen.Sample(iterations: 1, seed: seed, size: size ?? 100).Single();
public static T SampleOne <T>( this IGen <T> gen, int?seed = null, int?size = null) => gen.Sample(iterations: 1, seed: seed, size: size ?? 100).Single();