code: def test_valid_actor_state(call_ray_start_shared):
      """
      Repeatedly inject errors in the middle of mutating actor calls. Check
      at the end that the final state of the actor is consistent with what
      we would expect had the disconnects not occurred.
      """
  
      @ray.remote
      class IncrActor:
          def __init__(self):
              self.val = 0
  
          def incr(self):
              self.val += 1
              return self.val
  
      i = 0
      # This is to prevent erroring in the initial connection logic.
      started = False
  
      def fail_every_seven(_):
          # Inject an error every seventh time this method is called
          nonlocal i, started
          i += 1
          if i % 7 == 0 and started:
              raise RuntimeError
  
      with start_middleman_server(
          on_data_response=fail_every_seven,
          on_task_request=fail_every_seven,
          on_task_response=fail_every_seven,
      ):
          started = True
          actor = IncrActor.remote()
          for _ in range(100):
              ref = actor.incr.remote()
          assert ray.get(ref) == 100
  
imports: from concurrent import futures
  import contextlib
  import os
  import threading
  import sys
  import grpc
  from mock import Mock
  import numpy
  import time
  import random
  import pytest
  from typing import Any, Callable, Optional
  from unittest.mock import patch
  import ray
  from ray._private.utils import get_or_create_event_loop
  import ray.core.generated.ray_client_pb2
  import ray.core.generated.ray_client_pb2_grpc
  from ray.tests.conftest import call_ray_start_context
  from ray.util.client.common import CLIENT_SERVER_MAX_THREADS, GRPC_OPTIONS
label_desc: Use image node_id 8 for calling a global function with example usage: test_valid_actor_state(call_ray_start_shared) and returns: self