code: def get_free_udp_port(self, project):
          
          port = self.find_unused_port(self._udp_port_range[0],
                                       self._udp_port_range[1],
                                       host=self._udp_host,
                                       socket_type="UDP",
                                       ignore_ports=self._used_udp_ports)
  
          self._used_udp_ports.add(port)
          project.record_udp_port(port)
          log.debug("UDP port {} has been allocated".format(port))
          return port
docs: Get an available UDP port and reserve it
  
          :param project: Project instance