code: def test_distributed_actor_handle_deletion(ray_start_regular_shared):
      @ray.remote
      class Actor:
          def method(self):
              return 1
  
          def getpid(self):
              return os.getpid()
  
      @ray.remote
      def f(actor, signal):
          ray.get(signal.wait.remote())
          return ray.get(actor.method.remote())
  
      SignalActor = create_remote_signal_actor(ray)
      signal = SignalActor.remote()
      a = Actor.remote()
      pid = ray.get(a.getpid.remote())
      # Pass the handle to another task that cannot run yet.
      x_id = f.remote(a, signal)
      # Delete the original handle. The actor should not get killed yet.
      del a
  
      # Once the task finishes, the actor process should get killed.
      ray.get(signal.send.remote())
      assert ray.get(x_id) == 1
      wait_for_pid_to_exit(pid)
  
imports: import datetime
  import os
  import random
  import sys
  import tempfile
  import numpy
  import pytest
  import ray
  from ray import cloudpickle
  from ray._private import ray_constants
  from ray._private.test_utils import client_test_enabled, wait_for_condition, wait_for_pid_to_exit
  from ray.actor import ActorClassInheritanceException
  from ray.tests.client_test_utils import create_remote_signal_actor
  from ray._private.test_utils import SignalActor
  import setproctitle
label_desc: Use image node_id 31 for calling a global function with example usage: test_distributed_actor_handle_deletion(ray_start_regular_shared) and returns: ray, int, os