code: def close(self) -> None:
      self.request_queue.put(None)
      if self.log_thread is not None:
          self.log_thread.join()
  
file_path: ray/python/ray/util/client/logsclient.py
imports: import sys
  import logging
  import queue
  import threading
  import time
  import grpc
  from typing import TYPE_CHECKING
  import ray.core.generated.ray_client_pb2
  import ray.core.generated.ray_client_pb2_grpc
  from ray.util.debug import log_once
label_desc: Use image node_id 8 for calling the LogstreamClient obj's underlying member method code with example usage: obj.close() without return types