code: def download(
      name: str,
      output_dir: str,
      url: str,
      reference_bin_hash: str,
  ) -> bool:
      """
      Download a platform-appropriate binary if one doesn't already exist at the expected location and verifies
      that it is the right binary by checking its SHA256 hash against the expected hash.
      """
      # First check if we need to do anything
      binary_path = Path(output_dir, name)
      if check(binary_path, reference_bin_hash):
          logging.info(
              "Correct binary already exists at %s. Exiting.",
              binary_path,
          )
          return True
  
      # Create the output folder
      binary_path.parent.mkdir(parents=True, exist_ok=True)
  
      # Download the binary
      logging.info("Downloading %s to %s", url, binary_path)
  
      if DRY_RUN:
          logging.info(
              "Exiting as there is nothing left to do in dry run mode"
          )
          return True
  
      urllib.request.urlretrieve(
          url,
          binary_path,
          reporthook=report_download_progress
          if sys.stdout.isatty()
          else None,
      )
  
      logging.info("Downloaded %s successfully.", name)
  
      # Check the downloaded binary
      if not check(binary_path, reference_bin_hash):
          logging.critical(
              "Downloaded binary %s failed its hash check", name
          )
          return False
  
      # Ensure that executable bits are set
      mode = os.stat(binary_path).st_mode
      mode |= stat.S_IXUSR
      os.chmod(binary_path, mode)
  
      logging.info("Using %s located at %s", name, binary_path)
      return True
  
file_path: pytorch/tools/linter/adapters/s3_init.py
imports: import argparse
  import hashlib
  import json
  import logging
  import os
  import platform
  import stat
  import subprocess
  import sys
  import urllib.error
  import urllib.request
  from pathlib import Path
label_desc: Use image node_id 4 for calling a global function with example usage: download(name, output_dir, url, reference_bin_hash) and returns: True, True, True, False