code: def tunnel_connection(
      socket,
      addr,
      server,
      keyfile=None,
      password=None,
      paramiko=None,
      timeout=60,
  ):
      """Connect a socket to an address via an ssh tunnel.
  
      This is a wrapper for socket.connect(addr), when addr is not accessible
      from the local machine.  It simply creates an ssh tunnel using the remaining args,
      and calls socket.connect('tcp://localhost:lport') where lport is the randomly
      selected local port of the tunnel.
  
      """
      new_url, tunnel = open_tunnel(
          addr,
          server,
          keyfile=keyfile,
          password=password,
          paramiko=paramiko,
          timeout=timeout,
      )
      socket.connect(new_url)
      return tunnel
  
file_path: catboost/contrib/python/pyzmq/py3/zmq/ssh/tunnel.py
imports: import atexit
  import os
  import re
  import signal
  import socket
  import sys
  import warnings
  from getpass import getpass, getuser
  from multiprocessing import Process
label_desc: Use image node_id 5 for calling a global function with example usage: tunnel_connection(socket, addr, server, keyfile, password, paramiko, timeout) and returns: tunnel