public void IsNone_ReturnTrue() => _option.IsNone().ShouldBeTrue();
public void IsNone_ReturnFalse() => _option.IsNone().ShouldBeFalse();
public void IsNone_ReturnTrue() => _option.IsNone().ShouldBeTrue();
public void IsNone_ReturnFalse() => _option.IsNone().ShouldBeFalse();