code: def reliability_guard(maximum_memory_bytes: Optional[int] = None):
      """
      This disables various destructive functions and prevents the generated code
      from interfering with the test (e.g. fork bomb, killing other processes,
      removing filesystem files, etc.)
  
      WARNING
      This function is NOT a security sandbox. Untrusted code, including, model-
      generated code, should not be blindly executed outside of one. See the
      Codex paper for more information about OpenAI's code sandbox, and proceed
      with caution.
      """
  
      if maximum_memory_bytes is not None:
          import resource
  
          resource.setrlimit(
              resource.RLIMIT_AS,
              (maximum_memory_bytes, maximum_memory_bytes),
          )
          resource.setrlimit(
              resource.RLIMIT_DATA,
              (maximum_memory_bytes, maximum_memory_bytes),
          )
          if not platform.uname().system == "Darwin":
              resource.setrlimit(
                  resource.RLIMIT_STACK,
                  (maximum_memory_bytes, maximum_memory_bytes),
              )
  
      faulthandler.disable()
  
      import builtins
  
      builtins.exit = None
      builtins.quit = None
  
      import os
  
      os.environ["OMP_NUM_THREADS"] = "1"
  
      os.kill = None
      os.system = None
      os.putenv = None
      os.remove = None
      os.removedirs = None
      os.rmdir = None
      os.fchdir = None
      os.setuid = None
      os.fork = None
      os.forkpty = None
      os.killpg = None
      os.rename = None
      os.renames = None
      os.truncate = None
      os.replace = None
      os.unlink = None
      os.fchmod = None
      os.fchown = None
      os.chmod = None
      os.chown = None
      os.chroot = None
      os.fchdir = None
      os.lchflags = None
      os.lchmod = None
      os.lchown = None
      os.getcwd = None
      os.chdir = None
      builtins.open = None
  
      import shutil
  
      shutil.rmtree = None
      shutil.move = None
      shutil.chown = None
  
      import subprocess
  
      subprocess.Popen = None  # type: ignore
  
      __builtins__["help"] = None
  
      import sys
  
      sys.modules["ipdb"] = None
      sys.modules["joblib"] = None
      sys.modules["resource"] = None
      sys.modules["psutil"] = None
      sys.modules["tkinter"] = None
  
imports: import contextlib
  import faulthandler
  import io
  import os
  import platform
  import signal
  import tempfile
  from typing import Optional
label_desc: Use image node_id 5 for calling a global function with example usage: reliability_guard(maximum_memory_bytes) without return types