@view_config(renderer='templates/form.pt', name='checkbox')
    @demonstrate('Checkbox Widget')
    def checkbox(self):
        class Schema(colander.Schema):
            want = colander.SchemaNode(
                colander.Boolean(),
                description='Check this box!',
                widget=deform.widget.CheckboxWidget(),
                title='I Want It!')
        schema = Schema()
        form = deform.Form(schema, buttons=('submit',))
        return self.render_form(form)