code: def test_autoscaler_prefix():
      script = """
  import ray
  import time
  
  ray.init(num_cpus=1)
  
  @ray.remote(num_cpus=1)
  class A:
      pass
  
  a = A.remote()
  b = A.remote()
  time.sleep(25)
      """
  
      proc = run_string_as_driver_nonblocking(script)
      out_str = proc.stdout.read().decode("ascii")
      err_str = proc.stderr.read().decode("ascii")
  
      print(out_str, err_str)
      assert "(autoscaler" in out_str
  
imports: import os
  import re
  import signal
  import subprocess
  import sys
  import time
  import pytest
  import ray
  from ray._private.test_utils import run_string_as_driver, run_string_as_driver_nonblocking, wait_for_condition
label_desc: Use image node_id 11 for calling a global function with example usage: test_autoscaler_prefix() without return types