code: def reserve_ports(self, locations, force=False, reset=True):
          
  
          for location in locations:
              ip, module, port = location.split('/')
              self.chassis_list[ip].reserve_ports(['{}/{}'.format(module, port)], force, reset)
  
          return self.ports
docs: Reserve ports and reset factory defaults.
  
          XenaManager-2G -> Reserve/Relinquish Port.
          XenaManager-2G -> Reserve Port.
  
          :param locations: list of ports locations in the form <ip/slot/port> to reserve
          :param force: True - take forcefully. False - fail if port is reserved by other user
          :param reset: True - reset port, False - leave port configuration
          :return: ports dictionary (index: object)