code: def __init__(self, methodName="FLTest") -> None:
      super().__init__(methodName)
      self.port = 8980
      self.port = self.get_available_port(self.port, self.port + 10)
      self.target = f"localhost:{self.port}"
  
file_path: BigDL/python/ppml/src/bigdl/ppml/fl/utils.py
imports: from bigdl.dllib.utils.common import *
  import unittest
  import socket
  from bigdl.dllib.utils.log4Error import invalidOperationError
label_desc: Use image node_id 1 to create a new FLTest object from inherited base classes: unittest with example: obj = FLTest(methodName)