code: def gloo_run_elastic(
      settings, env, command_or_func, executable
  ) -> Optional[Any]:
      def get_common_interfaces(driver):
          # Host-to-host common interface detection requires at least 2 hosts in an elastic job.
          min_hosts = _get_min_start_hosts(settings)
          current_hosts = driver.wait_for_available_slots(
              settings.num_proc, min_hosts=min_hosts
          )
          return driver_service.get_common_interfaces(
              settings, current_hosts.host_assignment_order
          )
  
      exec_command = _exec_command_fn(settings)
      rendezvous = RendezvousServer(settings.verbose)
      return launch_gloo_elastic(
          command_or_func,
          exec_command,
          settings,
          env,
          get_common_interfaces,
          rendezvous,
          executable,
      )
  
imports: import copy
  import errno
  import math
  import os
  import signal
  import sys
  import threading
  import time
  from shlex import quote
  from typing import Optional, Any
  from horovod.runner.common.util import env, safe_shell_exec
  from horovod.runner.common.util.hosts import get_host_assignments, parse_hosts
  from horovod.runner.driver import driver_service
  from horovod.runner.elastic.driver import ElasticDriver
  from horovod.runner.elastic.rendezvous import create_rendezvous_handler
  from horovod.runner.http.http_client import read_data_from_kvstore, put_data_into_kvstore
  from horovod.runner.http.http_server import KVStoreServer, RendezvousServer
  from horovod.runner.util import network, threads
  from horovod.runner.util.remote import get_remote_command
label_desc: Use image node_id 14 for calling a global function with example usage: gloo_run_elastic(settings, env, command_or_func, executable) and returns: launch_gloo_elastic, driver_service