def selected?(str_or_rx)
      found = frame.radio(label: str_or_rx)
      return found.selected? if found.exist?

      raise UnknownObjectException, "Unable to locate radio matching #{str_or_rx.inspect}"
    end
def selected?(str_or_rx)
      found = frame.radio(label: str_or_rx)
      return found.selected? if found.exist?

      raise UnknownObjectException, "Unable to locate radio matching #{str_or_rx.inspect}"
    end
Returns true if any of the radio button label matches the given value.

 @param [String, Regexp] str_or_rx
 @raise [Watir::Exception::UnknownObjectException] if the options do not exist
 @return [Boolean]