code: def get_vlan_brief_request(last_vlan_id):
          
  
          request_interface = ET.Element(
              'get-vlan-brief',
              xmlns="urn:brocade.com:mgmt:brocade-interface-ext"
          )
          if last_vlan_id != '':
              last_received_int_el = ET.SubElement(request_interface,
                                                   "last-rcvd-vlan-id")
              last_received_int_el.text = last_vlan_id
          return request_interface
docs: Creates a new Netconf request based on the last received
          vlan id when the hasMore flag is true