code: def edit_ipv4(self, ip4, descricao, id_ip):
          
  
          if not is_valid_int_param(id_ip):
              raise InvalidParameterError(
                  u'Ip identifier is invalid or was not informed.')
  
          if ip4 is None or ip4 == "":
              raise InvalidParameterError(
                  u'The IP4 is invalid or was not informed.')
  
          ip_map = dict()
          ip_map['descricao'] = descricao
          ip_map['ip4'] = ip4
          ip_map['id_ip'] = id_ip
  
          url = "ip4/edit/"
  
          code, xml = self.submit({'ip_map': ip_map}, 'POST', url)
  
          return self.response(code, xml)
docs: Edit a IP4
  
          :param ip4: An IP4 available to save in format x.x.x.x.
          :param id_ip: IP identifier. Integer value and greater than zero.
          :param descricao: IP description.
  
          :return: None