def xsrf_form_html(self):
        return '<input type="hidden" name="_xsrf" value="' + \
            escape.xhtml_escape(self.xsrf_token) + '"/>'
Returns Choice type field's choice id for form rendering
dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_server/src/tornado/web.py/RequestHandler.xsrf_form_html--crossover with--dataset/ETHPy150Open adlibre/Adlibre-DMS/adlibre_dms/apps/mdtui/templatetags/index_keys.py/choice_id