class_docstr: Manager for resources using background thread.
class_docstr_tok: ["Manager","for","resources","using","background","thread","."]
code: def _start(self):
      from .connection import Listener
  
      assert self._listener is None, "Already have Listener"
      util.debug("starting listener and thread for sending handles")
      self._listener = Listener(
          authkey=process.current_process().authkey
      )
      self._address = self._listener.address
      t = threading.Thread(target=self._serve)
      t.daemon = True
      t.start()
      self._thread = t
  
file_path: multiprocess/pypy3.9/multiprocess/resource_sharer.py
imports: import os
  import signal
  import socket
  import sys
  import threading
  from .None import process
  from .context import reduction
  from .None import util
label_desc: Use image node_id 6 for calling the _ResourceSharer obj's underlying member method code with example usage: obj._start() without return types