public static PropertyMustBe <T, string> MustBeNullOrWhiteSpace <T>(this PropertyMustBe <T, string> actual) { return(actual.Is(string.IsNullOrWhiteSpace)); }
public static PropertyMustBe <T, string> MustBeNullOrEmpty <T>(this PropertyMustBe <T, string> actual) { return(actual.Is(string.IsNullOrEmpty)); }