@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)