@view_config(renderer="templates/form.pt", name="sequence_of_radiochoices")
    @demonstrate("Sequence of Radio Choice Widgets")
    def sequence_of_radiochoices(self):
        choices = (
            ("habanero", "Habanero"),
            ("jalapeno", "Jalapeno"),
            ("chipotle", "Chipotle"),
        )
        class Peppers(colander.SequenceSchema):
            pepper = colander.SchemaNode(
                colander.String(),
                validator=colander.OneOf([x[0] for x in choices]),
                widget=deform.widget.RadioChoiceWidget(values=choices),
                title="Pepper Chooser",
                description="Select a Pepper",
            )
        class Schema(colander.Schema):
            peppers = Peppers()
        schema = Schema()
        form = deform.Form(schema, buttons=("submit",))
        return self.render_form(form)