code: def isns_isns_vrf_isns_ipaddress_loopback(self, **kwargs):
          
          config = ET.Element("config")
          isns = ET.SubElement(config, "isns", xmlns="urn:brocade.com:mgmt:brocade-isns")
          isns_vrf = ET.SubElement(isns, "isns-vrf")
          isns_vrf_instance_key = ET.SubElement(isns_vrf, "isns-vrf-instance")
          isns_vrf_instance_key.text = kwargs.pop('isns_vrf_instance')
          isns_ipaddress = ET.SubElement(isns_vrf, "isns-ipaddress")
          loopback = ET.SubElement(isns_ipaddress, "loopback")
          loopback.text = kwargs.pop('loopback')
  
          callback = kwargs.pop('callback', self._callback)
          return callback(config)
docs: Auto Generated Code