code: def __init__(self, addr: Union[str, int, Tuple[str, int]]) -> None:
      self.addr = addr
      self.sock = None
  
imports: import logging
  import os
  import selectors
  import signal
  import socket
  import subprocess
  import time
  from typing import Any, Callable, Dict, List, Optional, Tuple, Union
  import determined
label_desc: Use image node_id 1 to create a new PIDClient object  with example: obj = PIDClient(addr)