This should be the code in Get.RadionButtons.
internal
RadioButton[] RadioButtons(string id)

{

var allRadioButtons = ie.RadioButtons;

if (!string.IsNullOrEmpty(GenericContext<Context>.Current.CurrentFrame))

allRadioButtons = Frame(
GenericContext<Context>.Current.CurrentFrame).RadioButtons;

var radioButtons = allRadioButtons.Filter(Find.By("Id", new WebFormsElementIdComparer(id)));

var rdbs = new List<RadioButton>();

foreach (RadioButton radioButton in radioButtons)

{

rdbs.Add(radioButton);

}

return rdbs.ToArray();

}