def nacm_exec_default(self, **kwargs):
        """Auto Generated Code
        """
        config = ET.Element("config")
        nacm = ET.SubElement(config, "nacm", xmlns="urn:ietf:params:xml:ns:yang:ietf-netconf-acm")
        exec_default = ET.SubElement(nacm, "exec-default")
        exec_default.text = kwargs.pop('exec_default')

        callback = kwargs.pop('callback', self._callback)
        return callback(config)